Add image perspective editing and related tools

- Implemented the Image Perspective tool for editing image corners in Blender.
- Created a new operator `EditImagePerspective` to handle the perspective transformation.
- Added a preview feature for the perspective adjustment.
- Introduced the `ImagePolylineTool` for editing image masks with polylines.
- Developed backend support for Real-ESRGAN model inference, including ONNX integration.
- Added functionality for image masking and background removal.
- Created unit tests for the Real-ESRGAN ONNX model to ensure correct preprocessing and inference.

src/anyimage/server/models/__init__.py

@@ -1,8 +1,14 @@
-from . import ben2, da3, moge2
+from . import ben2, da3, moge2, realesrgan
 
 
 def geometry_adapter(model_key):
     return moge2 if model_key.startswith("MOGE2_") else da3
 
 
-__all__ = ("ben2", "da3", "moge2", "geometry_adapter")
+__all__ = (
+    "ben2",
+    "da3",
+    "moge2",
+    "realesrgan",
+    "geometry_adapter",
+)