Better organize the scaffolded views in a GWT application

All scaffolded views, mobile views, editors, and renderers get dumped into the same package. This becomes incredibly difficult to maintain. You also quickly exceed the number of files allowed per folder when deploying to the Google App Engine. Instead, create different packages for these different types of classes.

I have written code to accomplish this that I am happy to share, though it is not currently backward compatible with existing versions of Roo.