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.

src/anyimage/properties.py

@@ -139,7 +139,7 @@ def _model_items(models):
 
 
 def geometry_model_enum_items(_owner, _context):
-    models = [model for model in model_catalog() if model.get("family") == "moge2"]
+    models = [model for model in model_catalog() if model.get("family") == "moge"]
     return _model_items(models)