Add Hypervisor Virtual Management D-Bus interface objects

This commit adds a new yaml file for holding the Hypervisor's
Virtual Management Interface's network objects.
This models two ethernet interfaces to the hypervisor and its
static IPv4 attributes.

Tested by:
  busctl tree xyz.openbmc_project.Settings

(From meta-ibm rev: ae4ab28128052a57f8ddd4c910e27e04f92305d6)

Signed-off-by: Sunitha Harish <sunithaharish04@gmail.com>
Change-Id: I9a32d943867d26fbf215f248ab944e6f8750f415
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>