webadmin: Add network QoS to Vnic Profile UI

Added Network QoS selection in the Vnic Profile UI.

Added Network QoS to the Vnic Profile tables in UI.

Change-Id: I94ac502681b23e6e2dd138cd5e4de7c6ec482daa
Bug-Url: https://bugzilla.redhat.com/514420
Signed-off-by: Ofri Masad <omasad@redhat.com>
Signed-off-by: Alona Kaplan <alkaplan@redhat.com>