WIP work for materials/textures (nothing functional yet).
WIP work for materials/textures (nothing functional yet).
WIP work for materials/textures (nothing functional yet).
WIP work for materials/textures (nothing functional yet, but main work done now imho).
Do not enforce usage of array.array as parameter to add_foobar_array! Now any iterable returning elements of the right type is supported.
Bunch of fixes, and some cleanup. Mat & tex kindof work now.

Note things are far from perfect, and I'll probably have to update importer code as well.