[Bennu Core] Refactor: Migration to FenixFramework 2
- Bumped version to 1.1-SNAPSHOT
- Refactored code to comply with the new API
- Add relation from DomainRoot to MyOrg, as well as MyOrg initialization code
- Removed deprecated FenixFramework initialization code
- Removed deprecated OJB FieldConverters.
- VirtualHostAwareCodeGenerator commented, has to be dealt with later