ctest: implement ctest segment and align on msvc #21

Job	Run time
macos-latest, default debug	31s
windows-2022, default debug	57s
ubuntu-22.04, default debug	22s
macos-latest, sanitize debug	52s
ubuntu-22.04, sanitize debug	43s
windows-2022, sanitize+asanonly debug	33s
ubuntu-22.04, clang+sanitize debug	1m 2s
windows-2022, clang-cl+sanitize debug	1m 17s
ubuntu-22.04, clang+msan debug	2m 26s
windows-2022, clang-cl+msan debug	1m 28s
macos-latest, default release	36s
windows-2022, default release	49s
ubuntu-22.04, default release	18s
macos-latest, sanitize release	1m 5s
ubuntu-22.04, sanitize release	32s
windows-2022, sanitize+asanonly release	56s
ubuntu-22.04, clang+sanitize release	39s
windows-2022, clang-cl+sanitize release	1m 10s
ubuntu-22.04, clang+msan release	30s
windows-2022, clang-cl+msan release	1m 26s
	18m 12s

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