73 python repo updates

[cmalinmayor]

• Use pyproject.toml instead of setup.py (including dev, docs, test dependencies installed in normal fashion with pip install .[dev])
• CI testing for all OSes and python 3.8-3.11 (more strict on warnings except deprecation)
• Add pre-commit
• Add codecoverage (runs locally, we will see how it looks on the repo)
• Use hatch build system instead of setuptools (need to test automatic version setting)
• Add outlines for readme and contributor guide