* Unhide all is no longer part of face_set_change_visibility. * Implemented a few visibility API methods for PBVH_BMESH * Fixed bug with unhide all not freeing all multires grid_hidden bitmaps.
* Unhide all is no longer part of face_set_change_visibility. * Implemented a few visibility API methods for PBVH_BMESH * Fixed bug with unhide all not freeing all multires grid_hidden bitmaps.