guess output format based on output file extension

check for empty output file

default to .txt if no file extension provided

change default output format back to txt

add tests

update man page

fix default output format

directly return output dumper

use keys from dumpers in key error message

fix man pages

prevent output format from being overridden

use first dumper key as default format

update messages and formatting

update help message for format argument

specify list type in InvalidOutputFormat exception

make default output format more apparent

update messages

This reverts commit 6ffe0ad07b.

* feat: replace latitude and longitude with one argument alone: --position

* feat: add support for Plus Code

From Wikipedia: “The Open Location Code is a geocode system for
identifying an area anywhere on the Earth.”
A Plus Code has a the form of small alphanumerical codes like: `9F25J3H5+M8`

* docs: update the manpage

Bumps [black](https://github.com/psf/black) from 21.5b1 to 21.5b2.
- [Release notes](https://github.com/psf/black/releases)
- [Changelog](https://github.com/psf/black/blob/main/CHANGES.md)
- [Commits](https://github.com/psf/black/commits)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* chore(i18n): update German translation

Currently translated at 100.0% (69 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update French translation

Currently translated at 100.0% (69 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/fr/

* chore(i18n): update German translation

Currently translated at 100.0% (69 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update Spanish translation

Currently translated at 85.5% (59 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/es/

* chore(i18n): update French translation

Currently translated at 100.0% (69 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/fr/

* chore(i18n): update Norwegian Bokmål translation

Currently translated at 46.3% (32 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nb_NO/

* chore(i18n): update Dutch translation

Currently translated at 68.1% (47 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nl/

* chore(i18n): update Russian translation

Currently translated at 33.3% (23 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/ru/

* chore(i18n): update German translation

Currently translated at 94.2% (65 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update translation files

Updated by "Update PO files to match POT (msgmerge)" hook in Weblate.

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/

* feat(i18n): add English (XA pseudolocale) translation

* feat(i18n): delete English (XA pseudolocale) translation

* feat(i18n): add English (XA pseudolocale) translation

* chore(i18n): update English (XA pseudolocale) translation

Currently translated at 100.0% (72 of 72 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/en_XA/

* chore(i18n): update German translation

Currently translated at 91.6% (66 of 72 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update French translation

Currently translated at 100.0% (72 of 72 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/fr/

* chore(i18n): update German translation

Currently translated at 98.6% (71 of 72 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update German translation

Currently translated at 100.0% (72 of 72 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update Dutch translation

Currently translated at 58.3% (42 of 72 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nl/

Co-authored-by: Jérôme Deuchnord <jerome@deuchnord.fr>
Co-authored-by: Damgermys <damhub28@gmail.com>

Co-authored-by: Damgermys <damhub28@gmail.com>

Co-authored-by: Damgermys <damhub28@gmail.com>

Co-authored-by: Damgermys <damhub28@gmail.com>

Co-authored-by: Damgermys <damhub28@gmail.com>

* chore(i18n): update Dutch translation

Currently translated at 88.4% (61 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nl/

* chore(i18n): update Dutch translation

Currently translated at 62.3% (43 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nl/

* chore(i18n): update Dutch translation

Currently translated at 62.3% (43 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nl/

* chore(i18n): update German translation

Currently translated at 100.0% (69 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/de/

* chore(i18n): update Dutch translation

Currently translated at 68.1% (47 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/nl/

* chore(i18n): update Russian translation

Currently translated at 33.3% (23 of 69 strings)

Translations are welcome at https://hosted.weblate.org/projects/kosmorro/cli/ru/

Co-authored-by: Damgermys <damhub28@gmail.com>
Co-authored-by: Jérôme Deuchnord <jerome@deuchnord.fr>

* Added translation using Weblate (French)

* Added translation using Weblate (German)

* Added translation using Weblate (Norwegian Bokmål)

* Added translation using Weblate (Russian)

* Added translation using Weblate (Dutch)

* Added translation using Weblate (Spanish)

* Translated using Weblate (French)

Currently translated at 100.0% (69 of 69 strings)

Translation: Kosmorro/Command line interface
Translate-URL: https://hosted.weblate.org/projects/kosmorro/cli/fr/

* Translated using Weblate (German)

Currently translated at 100.0% (69 of 69 strings)

Translation: Kosmorro/Command line interface
Translate-URL: https://hosted.weblate.org/projects/kosmorro/cli/de/

* Translated using Weblate (Norwegian Bokmål)

Currently translated at 46.3% (32 of 69 strings)

Translation: Kosmorro/Command line interface
Translate-URL: https://hosted.weblate.org/projects/kosmorro/cli/nb_NO/

* Translated using Weblate (Russian)

Currently translated at 97.1% (67 of 69 strings)

Translation: Kosmorro/Command line interface
Translate-URL: https://hosted.weblate.org/projects/kosmorro/cli/ru/

* Translated using Weblate (Dutch)

Currently translated at 95.6% (66 of 69 strings)

Translation: Kosmorro/Command line interface
Translate-URL: https://hosted.weblate.org/projects/kosmorro/cli/nl/

* Translated using Weblate (Spanish)

Currently translated at 85.5% (59 of 69 strings)

Translation: Kosmorro/Command line interface
Translate-URL: https://hosted.weblate.org/projects/kosmorro/cli/es/

* chore: fix locales directories

Co-authored-by: Jérôme Deuchnord <jerome@deuchnord.fr>
Co-authored-by: Allan Nordhøy <epost@anotheragency.no>

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.3 to 1.26.4.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](https://github.com/urllib3/urllib3/compare/1.26.3...1.26.4)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [coveralls](https://github.com/TheKevJames/coveralls-python) from 3.0.0 to 3.0.1.
- [Release notes](https://github.com/TheKevJames/coveralls-python/releases)
- [Changelog](https://github.com/TheKevJames/coveralls-python/blob/master/CHANGELOG.md)
- [Commits](https://github.com/TheKevJames/coveralls-python/compare/3.0.0...3.0.1)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Thanks @Thierry-FreeBSD for maintaing Kosmorro on FreeBSD repositories! ♥

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.7.1 to 2.7.2.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.7.1...pylint-2.7.2)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.7.0 to 2.7.1.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.7.0...pylint-2.7.1)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.6.2 to 2.7.0.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.6.2...pylint-2.7.0)

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Bumps [pylint](https://github.com/PyCQA/pylint) from 2.6.0 to 2.6.2.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.6.0...pylint-2.6.2)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [tabulate](https://github.com/astanin/python-tabulate) from 0.8.7 to 0.8.8.
- [Release notes](https://github.com/astanin/python-tabulate/releases)
- [Changelog](https://github.com/astanin/python-tabulate/blob/master/CHANGELOG)
- [Commits](https://github.com/astanin/python-tabulate/compare/v0.8.7...v0.8.8)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [skyfield](https://github.com/brandon-rhodes/python-skyfield) from 1.36 to 1.37.
- [Release notes](https://github.com/brandon-rhodes/python-skyfield/releases)
- [Changelog](https://github.com/skyfielders/python-skyfield/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/brandon-rhodes/python-skyfield/compare/1.36...1.37)

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Bumps [numpy](https://github.com/numpy/numpy) from 1.20.0 to 1.20.1.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/master/doc/HOWTO_RELEASE.rst.txt)
- [Commits](https://github.com/numpy/numpy/compare/v1.20.0...v1.20.1)

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Bumps [numpy](https://github.com/numpy/numpy) from 1.19.5 to 1.20.0.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/master/doc/HOWTO_RELEASE.rst.txt)
- [Commits](https://github.com/numpy/numpy/compare/v1.19.5...v1.20.0)

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