Uses local database to lookup rom info instead of archive.vg
Minor code cleanup.
Keep core data from falling apart.
GameInfoHelper searches ~/Library/Application Support/OpenEmu/ for a database file.
Don’t block core data queue while downloading cover art.
Read rom header size from database. Also removed a dlog in importer.
GameInfoHelper checks if database if available before trying to open it. (Prevents ‘No such table’ errors)