fill in skeletons for the rest of the function calls in wkssvc (based

fill in skeletons for the rest of the function calls in wkssvc (based
on function names in ethereal)

implement TransportEnum - quite a cute call, you can ask for the
workstations list of network transports, including its ethernet
address.
(This used to be commit 62d7e9819c95c906d1094f711bc60cf58def30f6)