pyproject.toml migration

[tekktrik]

Resubmitting the same changes (plus a minor few extra) from #145, with the idea I'll follow through on getting it to pass CI as necessary (though I can't see the old logs anymore so this first one might just be to see what's still left):

Changes for migrating from setup.py to pyproject.toml. Changes include:

• Migratation from setup.py to pyproject.toml
• Remove ez_setup.py because pyproject.toml handles downloading build dependencies (setuptools)
• Also therefore removes ez_setup as a module
• Updates workflow files
• Builds a pure Python wheel for PyPI upload, along with the source distribution

Resolves #143

[tekktrik]

Alright, this passes my copy of GitHub Actions on the local repo

[tekktrik]

@brentru are the secrets up to date for this repository? It's failing pretty much all the unittests despite passing locally as well as in my fork with my credentials.

[tekktrik]

Actually, I think it's because secrets aren't available to non-authorized users in PRs, I ran into this for Adabot PRs.

[brentru]

@tekktrik I'm ok cleaning up the user access on this, could you email me/discord me what permissions need to be set in order for you to complete this migration?

[tekktrik]

Sure!

[brentru]

@tekktrik Could you take another look at this PR? I am not sure what it needs exactly.

[tekktrik]

I'll try to take another look within the next couple weeks. I put things down for a few months and am picking back up now.

[tekktrik]

I'll resolve the merge conflicts and update a few things this weekend and give it another shot. I can send you what I think is needed in a list here or Discord if you prefer.