Updated the connection pool for the table service

.jupyter/test.ipynb

fda-table-service/pom.xml

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

...rest-service/src/main/resources/mariadb_hibernate.cfg.xml

...ce/rest-service/src/test/java/at/tuwien/BaseUnitTest.java

...ice/rest-service/src/test/java/at/tuwien/CsvUnitTest.java

...java/at/tuwien/endpoint/TableEndpointIntegrationTest.java

...c/test/java/at/tuwien/endpoint/TableEndpointUnitTest.java

...st/java/at/tuwien/service/HibernateConnectorUnitTest.java

...t/java/at/tuwien/service/TableServiceIntegrationTest.java

...src/test/java/at/tuwien/service/TableServiceUnitTest.java

...ervices/src/main/java/at/tuwien/service/TableService.java

.../main/java/at/tuwien/service/impl/HibernateConnector.java

...rc/main/java/at/tuwien/service/impl/TableServiceImpl.java