* Invoke self-install via PEP517 in the CI
* Add tox envs for building dists via PEP 517
* Add linting dists via tox to GHA
* Upgrade `master` to `develop` in `setup.py`
* Simplify `python_requires` in `setup.py`
* Convert dynamic `setup.py` into static `setup.cfg`
* Move tests into individual modules too
* Ensure one test class per file
* Fix docker image after refactoring
* Add github actions workflow for building docker image
* Fix image name
* Setup python required for extracting proxy version
* Version will also require deps
No use mirrors
Enforce coverage3
Add coverage badge and use python -m to invoke coverage
Enforce pip3, remove SyntaxError reported line
Use develop branch for coverage status