feat: Implement cutout tool and depth generation features

- Added a new cutout tool for selecting regions in images, allowing users to choose mesh shapes based on selected areas.
- Introduced depth generation capabilities for rasterized images, including normal data extraction.
- Created jobs for generating depth planes and region data, enhancing the AI data generation workflow.
- Developed a selection refinement process for cutout regions, improving accuracy in generated outputs.
- Established a new region module for handling rasterized image regions and their associated AI generation tasks.
- Enhanced node graph builders for asset generation, facilitating smoother integration of new features.

src/anyimage/preferences.py

@@ -96,8 +96,8 @@ class AnyImagePreferences(bpy.types.AddonPreferences):
     max_ai_input_size: bpy.props.IntProperty(
         name="Maximum AI Input Size",
         description=(
-            "Maximum long edge used by Upscale, Depth and Normal analysis; "
-            "larger inputs are resized proportionally without changing color textures"
+            "Maximum source long edge eligible for Upscale and maximum long edge "
+            "used by Depth and Normal analysis"
         ),
         default=DEFAULT_MAX_AI_INPUT_SIZE,
         min=MIN_MAX_AI_INPUT_SIZE,