Generate XSD for CORBA types

[Wowbagger]

There seems to be a bug in the CORBA MDG package, in the sense that it does not define XSD transformation types for the various CORBA types.

Specifically, it generates what I would assert is an incorrect XSD for a CORBAEnum - rather than looking  "just like an Enumeration" it treats it as a class, and thus specifies that all the enumerational values should be in the XML.

I'm looking into ways to auto-serialize a CORBA "any" to XML, and would like to be able to have EA generate the schema for the underlying type, but that means being able to handle the CORBA types.