Added uuid column in virtual_interfaces table, and an OpenStack extension API for virtual interfaces to expose these IDs.  Also set this UUID as one of the external IDs in the OVS vif driver.
Added uuid column in virtual_interfaces table, and an OpenStack extension API for virtual interfaces to expose these IDs.  Also set this UUID as one of the external IDs in the OVS vif driver.
n0ano/gantt,n0ano/gantt