Python package parser

[sabinem]

Python package definitions provide detailed metadata such as supported python versions, operating systems, intended audience and more. This metadata can be extracted locally from the package file (setup.py, setup.cfg or pyproject.toml).

Note: Depends on #97

Objective: Add parser for local python package metadata.

Requirements:

• New gimie.parsers.PythonParser follows the gimie.parsers.Parser interface
• is added to gimie.parsers.PARSERS
• Tests verify that parser works as expected.

Resources:

• tomllib: a library to parse toml files
  the wheel archive of a built package contains a metadata.json file https://stackoverflow.com/questions/30188158/how-to-read-python-package-metadata-without-installation
• pkginfo: api to query package metadata from a source or binart distribution