reiterate version inference logic

[RonnyPfannschmidt]

• refactor step for version inference - intorduce intermediate types and fix/simplify the tests
• simplify pyproject
• use parametrize in test_extract_package_name
• use the canonical parsers from packaging for getting the package name
• finish migrating to using canonical package nmes for match setuptools_scm in bild deps
• correct encoding and manifest oversights
• split out normalizing version keywork normalization
• turn the version inference config into a protocol and simplify the setuptools integration points
• simplify integration invocations in the integration tests