Added semantics endpoints

dbrepo-authentication-service/dbrepo-realm.json

.../api/src/main/java/at/tuwien/api/semantics/EntityDto.java

...c/main/java/at/tuwien/api/semantics/OntologyBriefDto.java

.../main/java/at/tuwien/api/semantics/OntologyCreateDto.java

...pi/src/main/java/at/tuwien/api/semantics/OntologyDto.java

.../main/java/at/tuwien/api/semantics/OntologyModifyDto.java

...in/java/at/tuwien/api/semantics/TableColumnEntityDto.java

...main/java/at/tuwien/entities/database/table/TableKey.java

...uwien/entities/database/table/columns/TableColumnKey.java

.../src/main/java/at/tuwien/entities/semantics/Ontology.java

dbrepo-metadata-db/setup-schema.sql

...service/src/main/java/at/tuwien/config/SwaggerConfig.java

...e/src/main/java/at/tuwien/endpoints/OntologyEndpoint.java

...vice/src/main/java/at/tuwien/endpoints/QueryEndpoint.java

...vice/src/main/java/at/tuwien/endpoints/TableEndpoint.java

...src/main/java/at/tuwien/handlers/ApiExceptionHandler.java

...ice/rest-service/src/main/resources/application-local.yml

...-semantics-service/rest-service/src/main/resources/dc.rdf

...emantics-service/rest-service/src/main/resources/foaf.rdf

...-semantics-service/rest-service/src/main/resources/mo.rdf