Some 3D format, problem when importing/exporting process if contains Non-latin

[dgud]

obj and 3ds are really old formats made before Unicode was used anywhere.

It is just that I don't want to spend several hours/days to fix things that never was supposed to work.
It is hard to test and get every corner case correct on all OS'es, and I do have more fun features to do.

Wings saving and loading should of course work.