Implemented the table scraping

dbrepo-metadata-service/README.md

.../src/main/java/at/tuwien/api/database/table/TableDto.java

dbrepo-metadata-service/pom.xml

dbrepo-metadata-service/report/pom.xml

...tories/src/main/java/at/tuwien/mapper/DatabaseMapper.java

...ositories/src/main/java/at/tuwien/mapper/QueryMapper.java

...ice/src/main/java/at/tuwien/endpoints/ExportEndpoint.java

...rc/main/java/at/tuwien/endpoints/PersistenceEndpoint.java

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

.../src/main/java/at/tuwien/endpoints/TableDataEndpoint.java

...test/java/at/tuwien/endpoints/ExportEndpointUnitTest.java

.../java/at/tuwien/endpoints/IdentifierEndpointUnitTest.java

...java/at/tuwien/endpoints/PersistenceEndpointUnitTest.java

.../test/java/at/tuwien/endpoints/QueryEndpointUnitTest.java

...t/java/at/tuwien/endpoints/TableDataEndpointUnitTest.java

.../java/at/tuwien/gateway/BrokerServiceGatewayUnitTest.java

.../test/java/at/tuwien/gateway/CrossrefGatewayUnitTest.java

.../java/at/tuwien/gateway/DataDbSidecarGatewayUnitTest.java

.../test/java/at/tuwien/gateway/KeycloakGatewayUnitTest.java

...src/test/java/at/tuwien/gateway/OrcidGatewayUnitTest.java