- added a test to check that different objects are created by hibernate
when persisting the same composite in two different entities
- added one entity for testing the entity->embeddable->entity 1-1- relationship
-added case for entity->embeddable->entity[] relationship
-added model for "not polimorphic hierarchy" testing
-added objectaid class model for hierarchymodel (still to be refactored,
since "interface" inheritance is not depicted
-added uml model for personmodel
-added comments
-added case for testing @entity->@embeddable[]->@Any relationship
mapping.