Torrent files

[lebaaar]

Setup CRUD for torrents:

• Finalize DB schema (see Discord #db channel for database graph)
• Create EF models for DB
• Create TorrentController and TorrentService for creating and uploading Torrents (.torrent files, their titles, details and such)
• Store .torrent files somewhere (preferably not in DB)
• Create endpoint for downloading torrent files from server. Each torrent file then get the passkey from the user
• Create torrent file - magnet link conversion on server
• ...