Make project PEP 518 and PEP 621 compliant

[markcoletti]

PEP 518 and PEP 621 define the new standard for setting up a python package. The use of distutils and setuptools are deprecated in favor of using TOML files. We will need to convert to this new configuration management system.

[markcoletti]

One place to start: https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#writing-pyproject-toml

[Lance-Drane]

This should be fixed with 6a98f68