python-sgmllib3k-1.0.0-bp160.1.12

- Add %{?sle15_python_module_pythons}

- Add test_sgmllib.py and sgml_input.html as vendored sources.
- Add adjust_test_sgmllib.patch to fix the original Python 2.7
  files to make test suite work (Python 3.10 included).

- Skip Python 3.10 build: Failing due to uncompatibilities
- This is a unmaintained 10yrs old package and should be removed,
  but currently there are depending packages.

- Fix build requirements

- Initial spec for v1.0.0