c7bffc8fa2
As pointed out in https://developer.blender.org/rB213cd39b6db387bd88f12589fd50ff0e6563cf56#341113, the utilities are quite OBJ specific due to treating backslash as a line continuation character. It's unlikely that other formats need that. No functionality changes, just pure code move (and renamed tests so that their names reflect obj). Reviewed By: Campbell Barton Differential Revision: https://developer.blender.org/D14871