Finalized the semantic mapping

dbrepo-metadata-db/setup-schema.sql

...t/tuwien/entities/database/table/columns/TableColumn.java

...n/entities/database/table/columns/TableColumnConcept.java

...wien/entities/database/table/columns/TableColumnUnit.java

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

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

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

dbrepo-search-service/app/api/routes.py

dbrepo-search-service/app/opensearch_client.py

dbrepo-ui/api/database.service.js

dbrepo-ui/api/index.js

dbrepo-ui/api/search.service.js

dbrepo-ui/api/semantic.mapper.js

dbrepo-ui/api/user.service.js

dbrepo-ui/components/search/AdvancedSearch.vue