Form modifications

...nea/xlab/GECORegistration/config/userDBConfiguration.java

...enea/xlab/GECORegistration/controller/DataController.java

...b/GECORegistration/controller/DynamicInputController.java

...xlab/GECORegistration/controller/StructureController.java

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

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

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

...nea/xlab/GECORegistration/model/structure/ForeignKey.java

...lab/GECORegistration/model/structure/VwTableMetadata.java

...CORegistration/service/structure/ForeignKeyInterface.java

...egistration/service/structure/TableMetadataInterface.java

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

src/main/resources/application-test.properties

src/main/resources/application.properties