CMake

highway support attempt #1138

Job	Run time
full-build (ubuntu-20.04, "-DNO_EAGER_DSU")	1s
full-build (ubuntu-latest, "")	22s
full-build (ubuntu-20.04, "")	1s
full-build (ubuntu-latest, "-DL0_SAMPLING")	20s
full-build (ubuntu-latest, "-DNO_EAGER_DSU")	25s
full-build (ubuntu-20.04, "-DL0_SAMPLING")	1s
	1m 10s

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