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.

tests/anyimage/server/test_model_geometry.py

@@ -2,7 +2,7 @@ from unittest.mock import patch
 import numpy as np
 
 
-from anyimage.server.models import moge2 as moge2_model
+from anyimage.server.models import moge as moge2_model
 from anyimage.server.models.geometry import GeometryFrame