Use GitHub Actions and Artifacts to build more wheels

[john-science]

The variety of wheels built for this repo, and deployed on pypi.org, is low.

We could use GitHub Actions "Artifacts" to build a wheel for:

• [ ] various Windows OS versions
• [ ] various MacOS versions
• [X] various Linux OS versions
• [ ] A non-cythonized universal wheel

We don't need the auto-deploy to pypi.org. But auto-building the wheel files would be really helpful.