cpp: temporary reference docs

[murrayc t-online de (Murray Cumming)]

Those working on the cpp branch might find this Doxygen-generated
documentation useful:
http://www.murrayc.com/temp/orbitcpp_html/hierarchy.html
Note that this combines both the ORB stuff, such as CORBA::ORB seen be
users, and the IDL stuff that's used in the implementation of the
idl-compiler.

I need this documentation because the C++ code is so badly organised -
several files contain several C++ classes, with some classes being
declared in .cc files only. At some point, I plan to reorganise the
code, with a slightly deeper structure, and with 1 class per .hh/,cc, so
that we can understand more of the structure of the code by looking at
the directory structure.

-- 
Murray Cumming
murrayc@usa.net
www.murrayc.com