refactor(tests): split up test suites, update docs #913

Job	Run time
build-splicer (ubuntu-latest)	10s
lint	46s
build-splicer (windows-latest)	13s
build (weval)	10s
build (release)	13s
build (debug)	12s
test-example	35s
test (23.10.0, ubuntu-latest, weval)	9m 10s
test (23.10.0, ubuntu-latest, release)	6m 7s
test (23.10.0, ubuntu-latest, debug)	6m 59s
test (23.10.0, windows-latest, debug)	8m 34s
test (23.10.0, macos-latest, release)	4m 34s
test (23.10.0, macos-latest, debug)	9m 45s
test (23.10.0, windows-latest, release)	7m 9s
test (23.10.0, windows-latest, weval)	11m 49s
test (23.10.0, macos-latest, weval)	8m 8s
	1h 14m 34s

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