Updated Packaging

[TimPansino]

Overview

Updates library packaging to more modern methods.

• Move most packaging config to pyproject.toml instead of setup.py.
• Retain enough config in setup.py to build without setuptools if necessary.
• Build system now requires setuptools>=61.2 and setuptools_scm>=6.4.
• Reconfigure setuptools-scm to use more modern _version.py file instead of a version.txt file.
  • Also provides new __version__ and __version_tuple__ attributes on __init__.py.
• Drop old setup.cfg file completely.

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	6		0	0	0.78s
✅ MARKDOWN	markdownlint	7	0	0	0	1.24s
✅ MARKDOWN	markdown-link-check	7		0	0	21.16s
✅ PYTHON	ruff	929	0	0	0	0.91s
✅ PYTHON	ruff-format	929	0	0	0	0.34s
✅ YAML	prettier	13	0	0	0	1.33s
✅ YAML	v8r	13		0	0	4.7s
✅ YAML	yamllint	13		0	0	0.62s

See detailed report in MegaLinter reports

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (develop-11.0.0@fea8317). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                @@
##             develop-11.0.0    #1480   +/-   ##
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  Coverage                  ?   81.64%           
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  Files                     ?      204           
  Lines                     ?    23482           
  Branches                  ?     3717           
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  Hits                      ?    19173           
  Misses                    ?     3066           
  Partials                  ?     1243           

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