Add a command to change namespace visibility. #1769

Job	Run time
build-ceph	1m 42s
build-arm64	1h 0m 55s
build	9m 28s
demo (unsecured)	4m 30s
demo (psk)	5m 36s
discovery (container)	3m 58s
demo (dhchap)	5m 23s
discovery (embedded)	3m 57s
atom	0s
ha (sanity)	4m 4s
ha (no_huge)	3m 55s
pytest (cli)	3m 0s
ha (ns_lb_change)	4m 10s
pytest (cli_change_lb)	8m 27s
ha (no_subsystems)	2m 46s
pytest (cli_change_keys)	3m 13s
ha (auto_load_balance)	19m 51s
pytest (cli_change_ns_visibility)	3m 19s
ha (state_transitions)	4m 37s
pytest (state)	2m 55s
ha (state_transitions_both_gws)	6m 23s
pytest (multi_gateway)	2m 40s
ha (state_transitions_loop)	20m 13s
pytest (server)	3m 26s
ha (state_transitions_rand_loop)	22m 32s
pytest (grpc)	3m 3s
ha (late_registration)	4m 53s
pytest (omap_lock)	3m 30s
ha (late_registration_loop)	8m 59s
pytest (log_files)	3m 19s
ha (4gws)	9m 11s
pytest (nsid)	3m 39s
ha (4gws_loop)	11m 0s
pytest (psk)	2m 25s
pytest (dhchap)	2m 29s
ha (4gws_create_delete)	8m 59s
ha (4gws_create_delete_loop)	11m 36s
ha (namespaces)	12m 20s
ha (namespaces_loop)	21m 55s
ha (mtls)	3m 54s
ha (notify)	2m 7s
ha (ceph_status)	2m 12s
ha (blocklist)	2m 35s
ha (main_exit)	1m 40s
push-devel-image-to-ceph-registry	0s
push-images-to-ceph-registry	0s
	5h 30m 46s

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