Add new tests and functionality for image processing and geometry handling

- Introduced color_image.py for preparing standalone color images for tests.
- Added hdr_image.py to create HDR textures for testing.
- Implemented test_image_depth_panorama.py to evaluate panorama topology, UVs, and depth discontinuities.
- Created test_shadeless.py to validate the opacity and HDR color endpoints of the Shadeless group.
- Developed moge3_export.py for exporting dynamic MoGe-3 backbone and ONNX graphs.
- Added material.py to inherit material slots onto generated geometry.
- Built image_depth_panorama.py to construct a quad panorama with depth separation and sampling.

tools/nodes/arrangement/dimensions.json

@@ -30,6 +30,8 @@
     "GeometryNodeFlipFaces": 0,
     "GeometryNodeGroup": 1,
     "GeometryNodeImageTexture": 2,
+    "GeometryNodeImageInfo": 0,
+    "GeometryNodeSetMaterial": 0,
     "GeometryNodeInputIndex": 0,
     "GeometryNodeInputMeshEdgeNeighbors": 0,
     "GeometryNodeInputMeshEdgeVertices": 0,