refactor(tests): split up test suites, update docs #908

Job	Run time
lint	47s
build-splicer (windows-latest)	10s
build-splicer (ubuntu-latest)	5s
build (weval)	13s
build (release)	14s
build (debug)	9s
test-example	41s
test (23.10.0, ubuntu-latest, debug)	2m 24s
test (23.10.0, ubuntu-latest, weval)	2m 25s
test (23.10.0, ubuntu-latest, release)	2m 24s
test (23.10.0, windows-latest, release)	2m 21s
test (23.10.0, windows-latest, debug)	2m 19s
test (23.10.0, macos-latest, debug)	2m 27s
test (23.10.0, macos-latest, weval)	2m 29s
test (23.10.0, macos-latest, release)	2m 28s
test (23.10.0, windows-latest, weval)	2m 20s
	23m 56s

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