Feature/s3 data db

...vices/src/main/java/at/tuwien/service/StorageService.java

...rvices/src/main/java/at/tuwien/service/SubsetService.java

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

...services/src/main/java/at/tuwien/service/ViewService.java

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

...ain/java/at/tuwien/service/impl/StorageServiceS3Impl.java

...java/at/tuwien/service/impl/SubsetServiceMariaDbImpl.java

.../java/at/tuwien/service/impl/TableServiceMariaDbImpl.java

...n/java/at/tuwien/service/impl/ViewServiceMariaDbImpl.java

dbrepo-metadata-db/1_setup-schema.sql

dbrepo-metadata-service/Dockerfile

...main/java/at/tuwien/api/container/ContainerCreateDto.java

...i/src/main/java/at/tuwien/api/container/ContainerDto.java

...tuwien/api/container/internal/PrivilegedContainerDto.java

...src/main/java/at/tuwien/api/database/query/ImportDto.java

...src/main/java/at/tuwien/entities/container/Container.java

...src/main/java/at/tuwien/entities/database/ViewColumn.java

.../src/main/java/at/tuwien/entities/identifier/Creator.java

...c/main/java/at/tuwien/entities/identifier/Identifier.java

.../at/tuwien/entities/identifier/IdentifierDescription.java