feat: allow regex matching

[Thomzoy]

See #93

[ochedru]

Thank you for your PR! Can you please rebase it? I had to revert to ubuntu-20.04 in the github actions to make the build work.

[Thomzoy]

Thank you for your PR! Can you please rebase it? I had to revert to ubuntu-20.04 in the github actions to make the build work.

Done !

[codecov-commenter]

Codecov Report

Merging #94 (349a627) into master (9c1fcb7) will decrease coverage by 0.64%.
The diff coverage is 75.75%.

@@ Coverage Diff @@ ## master #94 +/- ## ========================================== - Coverage 84.05% 83.40% -0.65%  ========================================== Files 9 9 Lines 464 470 +6 Branches 90 93 +3 ========================================== + Hits 390 392 +2  - Misses 62 65 +3  - Partials 12 13 +1 

Impacted Files	Coverage Δ
liccheck/command_line.py	75.29% <73.77%> (-0.01%)	⬇️
tests/test_check_package.py	100.00% <100.00%> (ø)
tests/test_get_packages_info.py	93.33% <0.00%> (-6.67%)	⬇️

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[Thomzoy]

Well I should remove type hinting for compatibility with Python 2

[ochedru]

Well I should remove type hinting for compatibility with Python 2

Yup, and there is also an f-string. Maybe we'll drop support for Python 2 in the next major version.

[Thomzoy]

Well I should remove type hinting for compatibility with Python 2

Yup, and there is also an f-string. Maybe we'll drop support for Python 2 in the next major version.

Ah yes my bad, I don't have Python 2 on my system so I cannot check it thoroughly

[ochedru]

The tests are ok. Could you please add an example of regex matching in the readme file, so users know how to use your feature? Thanks!

[Thomzoy]

Done !