Build micro_rpc for bare metal with Bazel (second edition). #23

Job	Run time
build_attest_all (buildconfigs/key_xor_test_app.sh)	2m 21s
build_attest_all (buildconfigs/oak_containers_kernel.sh)	10m 58s
build_attest_all (buildconfigs/oak_containers_orchestrator.sh)	6m 41s
build_attest_all (buildconfigs/oak_containers_stage1.sh)	3m 34s
build_attest_all (buildconfigs/oak_containers_syslogd.sh)	6m 14s
build_attest_all (buildconfigs/oak_containers_system_image.sh)	11m 51s
build_attest_all (buildconfigs/oak_echo_enclave_app.sh)	2m 24s
build_attest_all (buildconfigs/oak_echo_raw_enclave_app.sh)	2m 11s
build_attest_all (buildconfigs/oak_functions_enclave_app.sh)	2m 38s
build_attest_all (buildconfigs/oak_functions_insecure_enclave_app.sh)	2m 46s
build_attest_all (buildconfigs/oak_restricted_kernel_simple_io_init_rd_wrapper_bin.sh)	2m 57s
build_attest_all (buildconfigs/stage0_bin.sh)	2m 28s
build_attest_all (buildconfigs/oak_orchestrator.sh)	2m 21s
	59m 24s

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