cannot open .glb files with square brackets in the filename

[snoyer]

To reproduce:

• copy f3d.glb from the testing data as /tmp/f3[d].glb
• open /tmp/f3[d].glb with F3D
• observe:

Checking files:
Found a reader for "/tmp/f3[d].glb" : "GLTF"

Loading files: 
/tmp/f3[d].glb

ERROR: In vtkURI.cxx, line 379
(nullptr): Invalid character in path component '['


ERROR: In vtkGLTFImporter.cxx, line 437
vtkF3DGLTFImporter (0x32201f40): Error loading model metadata


Some of these files could not be loaded: failed to load scene
  /tmp/f3[d].glb

Looks URI related, parentheses and curly brackets work for glb models, square brackets work in other extensions (for example .vtp, haven't tested any others).