SpringAtom-#6 Data layer [Hibernate]

modified to catch up with services
SpringAtom-#17 DataAccessLayer for SpringAtom

added support for loading the entities in full-shape
lazy-inits are minimized as far as possible
SpringAtom-#17 DataAccessLayer for SpringAtom

fixed withFullLoad for SAppointmentService
SpringAtom-#5 Unit tests for DataLayer

test for finding the appointments by car