Openvim managment nets OVS refactoring

	- OVS bridge creation and vxlan tunnel mesh (stp active) creation in openvim hosts.
	- Add/remove/edit nets handling OVS ports, dhcp nets are supported to keep backwards compatibility.

Change-Id: I971067c77e50df292fa5cdd3bf926a222af349aa
Signed-off-by: Mirabal <leonardo.mirabal@altran.com>
6 files changed