Publish to PyPI with GH Action

[ianspektor]

• Added publish.yaml action which builds, tests and publishes wheels + source for all supported python versions for linux and macos
• Had to remove the usage of @classmethod, @Property and @AbstractMethod when used together (removed the property decorator) since py3.8 failed to understand it correctly
• Removed all uses of list, dict, tuple instead of typing.List, etc. as type hints for py3.8
• Had to make the build_manylinux script build for a single version, added build_manylinux_all which builds all of them
• Added all supported python versions to tests workflow
• Added manual confirmation step before publishing to pypi:

TODO:

• add prod pypi token to pypi environment's secrets in the repo's settings
• change test-pypi to pypi environment in publish step
• change branches: to release in publish action
• roll version back to 0.1.0

[rstz]

Great work! Just a few minor things

[rstz]

Great work! Just a few minor things

[DonBraulio]

This is great 🙌🙌

[rstz]

LGTM again, thank you for the changes :)