feat(core/remio): add Remote I/O infrastructure #266

Job	Run time
build-arm (fvp-a, GICV2)	6m 3s
build-arm (fvp-a, GICV2, CROSS_COMPILE=clang)	4m 48s
build-arm (fvp-a, GICV3)	2m 46s
build-arm (fvp-a, GICV3, CROSS_COMPILE=clang)	2m 34s
build-arm (fvp-a-aarch32, GICV2)	1m 31s
build-arm (fvp-a-aarch32, GICV2, CROSS_COMPILE=clang)	1m 27s
build-arm (fvp-a-aarch32, GICV3)	1m 32s
build-arm (fvp-a-aarch32, GICV3, CROSS_COMPILE=clang)	1m 30s
build-arm (fvp-r, GICV2)	4m 47s
build-arm (fvp-r, GICV2, CROSS_COMPILE=clang)	1m 31s
build-arm (fvp-r, GICV3)	2m 24s
build-arm (fvp-r, GICV3, CROSS_COMPILE=clang)	3m 49s
build-arm (fvp-r-aarch32, GICV2)	4m 14s
build-arm (fvp-r-aarch32, GICV2, CROSS_COMPILE=clang)	1m 32s
build-arm (fvp-r-aarch32, GICV3)	1m 32s
build-arm (fvp-r-aarch32, GICV3, CROSS_COMPILE=clang)	1m 42s
	43m 42s

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