Added tests for RootFolderCheck

Fixed: Progress bar colour when series is continuing
Fixed: Episode Title in tables will show proper cursor and underline
Fixed rename styling
Fixed binary files.
Removed specials from test data to fix RefreshEpisodeService tests.
Added 'Nordic' as norwegian language.
Fixed: Failed history items now get removed from Nzbget if configured.
Fixed: Better parsing of the delimiters for absolute episode numbering.
New: Drone now uses the Download Client API to determine if a download is ready for import. (User configuration is required to replace the drone factory with this feature)
Fixed detection of failed unpack for nzbget proxy.
New: Updated Nzbget Download Client proxy with time estimation for both download and post-processing stages.
Queue UI no longer shows unknown ETAs as 0:00:00.
Sabnzbd Download Client now reports paused items as having unknown remaining time.
Added db migration to deal with the settings changes.
Processed comments.
Fixed performance issues with the QueueModule and limited the number of items the Download Client will fetch as history.
Updated migration to attempt associate old grabbed & imported events and associate drone factory imports during CompletedDownloadHandling.
Updated history event association logic and migration.