More work done towards a general REST generator (model and GUI change):
-> Projects may now have a class prefix attribute. This string is added to all created classes
-> Classes may now have “roles”. The code generators may use this “roles” during code generation.
-> Classes/Attributes have now “shadow” objects.
-> Menu entry added to jump directly to the error definition page
-> Menu entry added to create all classes within the model needed to have initial REST support.