Drivers do not copy over when Character+Assets is selected

[seenbuklee]

Since the downloader branch is still in review as of the 3rd of May 2025, there is an oversight in the finalize code, it does not copy over drivers for the character mesh over to asset mesh. This is obviously a problem in cases in which things like the Lacrimal Caruncle and tearline are separate meshes that need to follow character's facial expressions.