refactor(tests): split up test suites, update docs #904

Job	Run time
build-splicer (ubuntu-latest)	9s
lint	43s
build-splicer (windows-latest)	15s
build (debug)	7s
build (release)	14s
build (weval)	13s
test-example	45s
test (23.10.0, ubuntu-latest, release)	6m 16s
test (23.10.0, windows-latest, release)	7m 12s
test (23.10.0, windows-latest, debug)	8m 49s
test (23.10.0, macos-latest, weval)	14m 46s
test (23.10.0, windows-latest, weval)	12m 22s
test (23.10.0, ubuntu-latest, debug)	6m 57s
test (23.10.0, macos-latest, debug)	4m 56s
test (23.10.0, macos-latest, release)	4m 33s
test (23.10.0, ubuntu-latest, weval)	9m 1s
	1h 17m 18s

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