Lack of binary glTF examples with external data

There are no binary glTF examples with external data. It would be helpful to have at least one example covering this case.

Review the repository's existing asset examples and identify the conventions for binary glTF assets and external data. Add at least one example covering binary glTF with external data, then verify that the asset is complete and demonstrates the requested case.

Written by the indexing model from the issue text.