webadmin: Add vnic profile action groups to roles tree

The vnic profiles action groups were added to the roles
tree in order to better describe the actions supported
by an existing roles or to enable creation of a custom
role which includes any of these action groups.

Change-Id: I56ba098f8b0b8e1f94aa7ec82b3612a6a81365d6
Bug-Url: https://bugzilla.redhat.com/1002483
Signed-off-by: Moti Asayag <masayag@redhat.com>