Management of dynamic entities creation

...it/enea/xlab/GECORegistration/config/SpringFoxConfig.java

...enea/xlab/GECORegistration/controller/UserController.java

...b/GECORegistration/controller/dynamicInputController.java

...n/java/it/enea/xlab/GECORegistration/dto/MetadataDTO.java

...a/it/enea/xlab/GECORegistration/dto/TableMetadataDTO.java

...nea/xlab/GECORegistration/model/data/VwTableMetadata.java

...egistration/service/identityManager/IdpClientManager.java

...t/enea/xlab/GECORegistration/service/user/DTOManager.java

...ORegistration/GecoRegistrationSpringApplicationTests.java