v5.1.62 to v5.1.63

Flatbeds keep their loaded cars, matte paint kept and persistent vehicle fixes

A qs-mechanic-creator flatbed stored with cars on it now keeps them, with all their mods, and brings them back when it is taken out. Matte and other paint finishes are no longer lost, persistent vehicles no longer overwrite changes saved by other scripts, and other players now see custom RGB xenon lights in a matching colour.