Migrate devenv setup and package building from setuptools,versioneer,setup.cfg to plain pyproject.toml in combination with uv or pixi

 (ideally tool-agnositc, following the standards defined here: https://packaging.python.org/en/latest/guides/writing-pyproject-toml), for the main Snakemake and all associated packages like interfaces and plugins