Support feature subcommand #2125

Job	Run time
youki-build (x86_64, gnu)	1m 53s
youki-build (x86_64, musl)	1m 54s
youki-build (aarch64, gnu)	2m 10s
youki-build (aarch64, musl)	2m 6s
oci-validation-rust (x86_64, gnu)	2m 46s
oci-validation-rust (x86_64, musl)	2m 55s
containerd-integration-tests (x86_64, gnu)	4m 52s
k8s-tests (x86_64, gnu)	1m 19s
containerd-integration-tests (x86_64, musl)	4m 45s
docker-in-docker (ubuntu-22.04)	12s
k8s-tests (x86_64, musl)	1m 33s
oci-validation-go (x86_64, gnu)	2m 17s
docker-in-docker (ubuntu-20.04)	18s
oci-validation-go (x86_64, musl)	1m 52s
rootless-podman-test (x86_64, gnu)	52s
rootless-podman-test (x86_64, musl)	52s
	32m 36s

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