glTF: Fix a bug with relative paths
Relative paths were not being properly collapsed before reading buffers and image files.
https://discourse.vtk.org/t/glftimporter-example-added-to-vtkexamples/1356/6
Relative paths were not being properly collapsed before reading buffers and image files.
https://discourse.vtk.org/t/glftimporter-example-added-to-vtkexamples/1356/6