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/operators/cutout_tool/object.py

@@ -4,7 +4,6 @@ from enum import StrEnum
 
 import bpy
 
-from ...common.image import color_data_name, configure_color_alpha
 from ...common.depth import camera_depth_values, depth_uniform_scale
 from ...common.material import (
     IMAGE_MATERIAL_NODE_GROUP_NAME,
@@ -97,37 +96,6 @@ def _assign_float_point_attribute(mesh, name, values):
     attribute.data.foreach_set("value", np.asarray(values, dtype=np.float32))
 
 
-def create_cropped_color_image(source_object, crop_bounds, source_rgba):
-    """Create a packed color image for one local Cutout bounds rectangle."""
-    import numpy as np
-
-    source = source_object.data
-    rgba = np.asarray(source_rgba)
-    left, top, right, bottom = crop_bounds
-    width = right - left
-    height = bottom - top
-    if width <= 0 or height <= 0:
-        raise ValueError("The Cutout crop dimensions must be positive")
-    source_height, source_width = rgba.shape[:2]
-    if left < 0 or top < 0 or right > source_width or bottom > source_height:
-        raise ValueError("The Cutout crop is outside the source RGBA")
-    cropped = rgba[top:bottom, left:right]
-    image = bpy.data.images.new(
-        color_data_name(source_object),
-        width=width,
-        height=height,
-        alpha=True,
-    )
-    try:
-        image.colorspace_settings.name = source.colorspace_settings.name
-        configure_color_alpha(image)
-        image.pixels.foreach_set(np.flipud(cropped).ravel())
-        image.pack()
-        image.update()
-    except Exception:
-        bpy.data.images.remove(image, do_unlink=True)
-        raise
-    return image
 
 
 def load_cutout_node_group(shape):