* Update HttpSynchronization to keep track of files downloaded (#2587)
Reads ossync file on synchronization and download files that are missing
* Apply suggestions from code review
Co-authored-by: Alexander Bock <alexander.bock@liu.se>
* Apply suggestions from code review
* Fixed merge conflict errors
* Fixed asset being rejected on successful sync
* Add enum for download fail/success, sleep between download retries.
Removed comments and todos
* Fixed PR comments
---------
Co-authored-by: Alexander Bock <alexander.bock@liu.se>