Implemented retrieval of portal files during tar/zip archive generation and other ArchiveService improvements

Tar/Zip archive generation: added endpoint for retrieving generated files, modified generation endpoint payload and added tests

Added endpoint and service for generating tar/zip archives. Moved authorization logic in dedicated service and other minor refactoring

Removed exclusion of jackson-module-jaxb-annotations in pom.xml: this project doesn't include this dependency (unlike vospace-rest)