Implement MPFS Keystone Platform #66

Job	Run time
test-runtime-format	20s
test-runtime-functionality	15s
build (generic, 32)	42m 20s
build (generic, 64)	13m 19s
build (unmatched, 64)	17m 13s
build (mpfs, 64)	20m 1s
test-system / test-mpfs	43s
test-system / test-generic (generic, 32)	5m 33s
test-runtime-build / build-runtime (generic, 32)	25s
test-runtime-build / build-runtime (generic, 64)	33s
test-system / test-generic (generic, 64)	44s
test-runtime-build / build-runtime (unmatched, 64)	36s
test-runtime-build / build-runtime (mpfs, 64)	58s
	1h 43m 0s

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