CORBA3 — Creating IORs

> // ulgy conversion to objectref: we should think about
> // creating utilities for IOR<->objref conversion

I meant to raise that second issue (the ugly IOR to ObjRef conversion).
It is too painful and I think we should address it. I can think of a few
possible solutions.

1. have make object just return profiles, so the ORB can do the
conversion internally.
2. Add a method on the ORT to provide this functionality
3. Add a separate CODEC interface to manufacture IORs from Profiles
(IORFactory, rir etc)

Undo the resolution of issue 4476 and close 4478 no change