Keep track of new developments/practices in Python Packaging PEPs

[jherland]

The Python packaging community is still figuring out best practices and standards for various facets of the general problem of declaring dependencies (or phrased another way: "only install packages that have been written down somewhere").

To that end there are multiple PEPs in various states of progress, all indexed by the PyPA here: https://peps.python.org/topic/packaging/

Two of the most interesting PEPs, and which would need to be supported by FawltyDeps if/when they are generally adopted are:

• PEP 723 – Inline script metadata
• PEP 735 – Dependency Groups in pyproject.toml

[jherland]

Both of these PEPs are now official standards, and people have started using them. We should definitely add support for these ASAP.