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/operators/test_ai_image_operators.py

@@ -53,14 +53,15 @@ class AiImageOperatorsTest(BlenderTestCase):
 
     def test_upscale_operator_opens_setup_when_required_ai_is_missing(self):
         expected = {"CANCELLED"}
+        operator = self.upscale.UpscaleImage()
         with patch.object(
             self.upscale,
             "invoke_ai_setup_if_needed",
             return_value=expected,
         ) as setup:
-            result = self.upscale.UpscaleImage().invoke(None, None)
+            result = operator.invoke(None, None)
 
-        setup.assert_called_once_with()
+        setup.assert_called_once_with(operator)
         self.assertIs(result, expected)