1. Beef up MakeFake in Interface/Wires and use that from Port library
   instead of existing fake stuff.

2. Add a Create routine for wires, remove all the direct insertions
   scattered around the code.

3. Add some Lookup routines, so we can remove a bunch of direct queries
   to the DB scattered around the code.

4. Add a trivial wrapper Interface::Type, and give it one useful
   function for now, to map generic speed to interface object.