Debug not working on Windows

[letmaik]

When using --build-type=Debug on Windows with MSVC then during link-time the following error is raised:

LINK : fatal error LNK1104: cannot open file 'python39_d.lib'

This is because the Python header files themselves pull in the right library by name but the logic in CMaker.get_python_library always uses the non-debug library, so during link the library isn't found:

scikit-build/skbuild/cmaker.py

Line 366 in c0741f9

candidate_implementations = ['python']

I think instead on Windows CMaker should use _d suffixed libraries if the build type is Debug.