Merge branch '395-support-basic-authentication-2' into 'dev'

.docs/usage-broker.md

.docs/usage-metadata.md

.docs/usage-overview.md

.docs/usage-search.md

.docs/usage-storage.md

.docs/usage-upload.md

.gitlab-ci.yml

Pipfile

Pipfile.lock

dbrepo-data-service/README.md

dbrepo-data-service/pom.xml

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

dbrepo-metadata-service/README.md

dbrepo-metadata-service/pom.xml

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

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

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

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

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

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