Type annotations, mypy config, pydoclint setup, and other changes #18

Job	Run time
py3.12 \| macos \| unit tests	9m 52s
mypy	3m 45s
py3.12 \| macos \| integration tests	17m 29s
py3.12 \| ubuntu \| integration tests	17m 25s
py3.12 \| ubuntu \| unit tests	13m 22s
py3.12 \| windows \| integration tests	17m 21s
py3.12 \| windows \| unit tests	17m 21s
py3.10 \| ubuntu \| unit tests	11m 57s
py3.11 \| ubuntu \| unit tests	12m 49s
	2h 1m 21s

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