refactor(tests): split up test suites, update docs #910

Job	Run time
build-splicer (ubuntu-latest)	5s
build-splicer (windows-latest)	12s
lint	42s
build (debug)	9s
build (weval)	7s
build (release)	7s
test-example	38s
test (23.10.0, macos-latest, debug)	1m 43s
test (23.10.0, windows-latest, weval)	3m 53s
test (23.10.0, windows-latest, release)	1m 55s
test (23.10.0, ubuntu-latest, release)	1m 16s
test (23.10.0, macos-latest, release)	1m 45s
test (23.10.0, ubuntu-latest, debug)	1m 20s
test (23.10.0, macos-latest, weval)	2m 8s
test (23.10.0, ubuntu-latest, weval)	1m 54s
test (23.10.0, windows-latest, debug)	3m 12s
	21m 6s

Provide feedback