Revamp CMake support #691

Job	Run time
build (shared, sqlite3, ubuntu-22.04, 14, false, false)	50s
build (shared, postgresql, ubuntu-22.04, 14, false, false)	1m 4s
build (shared, mysql, ubuntu-22.04, 14, false, false)	59s
build (shared, firebird, ubuntu-22.04, 14, false, false)	1m 0s
build (shared, oracle, ubuntu-22.04, 14, false, false)	1m 56s
build (shared, odbc, ubuntu-22.04, 14, false, false)	1m 3s
build (shared, empty, ubuntu-22.04, 14, false, false)	50s
build (shared, valgrind, ubuntu-22.04, 14, false, false)	2m 33s
build (static, sqlite3, ubuntu-22.04, 14, false, false)	53s
build (static, postgresql, ubuntu-22.04, 14, false, false)	1m 2s
build (static, mysql, ubuntu-22.04, 14, false, false)	56s
build (static, firebird, ubuntu-22.04, 14, false, false)	1m 3s
build (static, oracle, ubuntu-22.04, 14, false, false)	1m 41s
build (static, odbc, ubuntu-22.04, 14, false, false)	1m 6s
build (static, empty, ubuntu-22.04, 14, false, false)	38s
build (static, valgrind, ubuntu-22.04, 14, false, false)	2m 43s
build (empty, macos-11)	1m 1s
build (postgresql, macos-11)	1m 26s
build (sqlite3, macos-11)	1m 15s
build (sqlite3, 17, ubuntu-22.04)	1m 4s
build (empty, true, ubuntu-22.04)	42s
build (empty, true, ubuntu-22.04)	30s
	26m 15s

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