Changes

- To achieve consistent behavior with respect to project creation
  - Add a new class AutoLanguageProjectSupport that determines whether to use a UI variant of the project creation
  - All calls to existing class LanguagePRojectSupport now use AutoLanguageProjectSupport
- Add a new preference for whether to use the wizard to create new projects. This setting is true by default.
- Put designer preference pages in a new designer category (within Papyrus) to avoid many disparate entries within Papyrus.
- Code generator eligibility is less restrictive (not based on profiles)