Pass resolver to _read_buffers() when loading a .GLB file

[dm-maxar]

At about line 444 in gltf.py the resolver argument should be passed to the _read_buffers() function. That is what is currently kwargs = _read_buffers( header=header, buffers=buffers, ignore_broken=ignore_broken, merge_primitives=merge_primitives, skip_materials=skip_materials, mesh_kwargs=mesh_kwargs ) should instead read kwargs = _read_buffers( header=header, buffers=buffers, ignore_broken=ignore_broken, merge_primitives=merge_primitives, skip_materials=skip_materials, mesh_kwargs=mesh_kwargs, resolver=resolver )

If this is not done, the texture image can not be loaded from a file where the texture URI is not base64 encoded.