Add new MCL library. #162

Job	Run time
build (linux-amd64)	1m 46s
build (linux-x86)	1m 35s
build (windows-x64)	3m 45s
build (windows-x86)	2m 48s
tools	1m 20s
runtimes (testscript)	1m 15s
test_e2e	2m 52s
docker_push (simer)	22s
publish (linux-amd64)	7s
containers (modelc, linux-amd64)	25s
docker_push (testscript)	24s
publish (linux-x86)	4s
containers (modelc-x86, linux-x86)	29s
publish (windows-x64)	6s
containers (simbus-sa, linux-amd64)	23s
publish (windows-x86)	9s
	17m 50s

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