Improving CI/CD for Github actions

[MicahGale]

Improvements:

• Moved completely to pyproject.toml
  • deleted pytest.ini
  • delete requirements/*
• Added coveralls support
• Added a test report summary
• Went completely to git based setuptools-scm for controlling version
  • version system is robust and should never lead to an error
  • versions are determined by a git tag
  • Git tag is automatically created with an action that uses semantic versioning to decide if it's a patch, minor, or major release.
• Added badges
• Improved deploy process.
  • implemented actual build-deploy process
  • build will:
    1. bump to a new version, and create a git tag
    2. build
    3. sign the packages with sig store
    4. Create a draft release on GitHub
    5. Upload artifacts for later deployment to PyPi
• Created a Pull Request Template

TODO:

• enable coveralls for this repo
• Add coveralls as a collaborator
• document how semantic versioning works
• Finish implementing Improve CI/CD #326.
• Fix Sentence fragment in README #328.
• Fix Add DOI information to user docs #338.

resolves #326, resolves #202, resolves #329, resolves #328, resolves #338.

[MicahGale]

Could you actually get to this one first?

[MicahGale]

Post Merge Todo:

• enforce passing checks for all PRs to develop and main

[MicahGale]

Going to merge this without approvals because this is CI/CD, which users won't be using, and if anything goes wrong it's going to most likely fail in a way that a deploy doesn't happen, not that bad code will go out.