Add "deployed server" fake neutron ports

Add "deployed server" fake neutron ports

This patch swaps out the noop ctlplane port for a more
proper fake neutron port stack. This stack is a swap
in for the OS::Neutron::Port heat resource and can be
controlled via the DeployedServerPortMap parameter.

By relying on <hostname>-<network> naming conventions in the
map we can map IPs to specific servers without using the
Neutron API. This will allow us to inject IP information
into the Heat stack within the new t-h-t undercloud installer
which currently does not run a Neutron service.

Change-Id: I29fbc720c3d582cbb94385e65e4b64b101f7eac9