[tacker][FFE] Mgmt driver sample for deploying Cilium

Hi, I'd like to request FFE in this cycle for the update for introducing a sample of management driver for deploying Cilium with K8s VIM as I proposed at the previous IRC meeting. Please let me know if you have any comment although there was nothing opposite then. https://review.opendev.org/c/openstack/tacker/+/911639 Thanks, Yasufumi