fixed user creation api

.../ebdapo/backend/entity/apidetails/BenutzerAPIDetails.java

...ebdapo/backend/entity/apidetails/LieferantAPIDetails.java

...om/ebdapo/backend/restcontroller/ApothekenController.java

...ava/com/ebdapo/backend/restcontroller/ArztController.java

...com/ebdapo/backend/restcontroller/BenutzerController.java

...om/ebdapo/backend/restcontroller/LieferantController.java

...ava/com/ebdapo/backend/security/MyUserDetailsService.java

...bdapo/backend/security/auth/AuthenticationController.java

Datenbank/EDB-Apo_dbdata.sql