What are the existing namespaces, and what are the exsting dependenices.
We if it's isolated to hd.data and main, then no problem
if plug-ins are dependent on the namepsaces, then reorganize the directories to
make the solution namespace Hydrodesktop. That is what it has really become
- add folders for the namespace
- HydroPlugIn (with the interfaces
- HydroPlugIn/Impl (code implementing Hydroplugin)