Basic integration test of oak containers attestation. #466

Job	Run time
build_attest_all (buildconfigs/key_xor_test_app.sh)	5m 37s
build_attest_all (buildconfigs/oak_client_android_app.sh)	52m 35s
build_attest_all (buildconfigs/oak_containers_agent.sh)	6m 58s
build_attest_all (buildconfigs/oak_containers_kernel.sh)	29m 43s
build_attest_all (buildconfigs/oak_containers_orchestrator.sh)	9m 35s
build_attest_all (buildconfigs/oak_containers_stage1.sh)	6m 27s
build_attest_all (buildconfigs/oak_containers_syslogd.sh)	8m 47s
build_attest_all (buildconfigs/oak_containers_system_image.sh)	17m 9s
build_attest_all (buildconfigs/oak_containers_nvidia_system_image.sh)	19m 1s
build_attest_all (buildconfigs/oak_echo_enclave_app.sh)	4m 47s
build_attest_all (buildconfigs/oak_echo_raw_enclave_app.sh)	5m 40s
build_attest_all (buildconfigs/oak_functions_enclave_app.sh)	5m 2s
build_attest_all (buildconfigs/oak_functions_insecure_enclave_app.sh)	5m 35s
build_attest_all (buildconfigs/oak_orchestrator.sh)	5m 38s
build_attest_all (buildconfigs/oak_restricted_kernel_simple_io_init_rd_wrapper_bin.sh)	18m 17s
build_attest_all (buildconfigs/stage0_bin.sh)	41m 5s
	4h 1m 56s

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