Add a windows setup builder

[vkbo]

Summary:

I'm giving the Windows setup installer a go again. This time without packaging novelWriter into anything at all. The new setup just installs the Python source from the Minimal Windows Package with pre-compiled pyc files, Python 3.10 embedded, and the dependency libraries installed into a lib folder.

The old pyz builder has been removed from the setup.py script.

Related Issue(s):

Related: #640

Reviewer's Checklist:

• The header of all files contain a reference to the repository license
• The overall test coverage is increased or remains the same as before
• All tests are passing
• All flake8 checks are passing and the style guide is followed
• Documentation (as docstrings) is complete and understandable
• Only files that have been actively changed are committed