Add comprehensive tests for image processing and mask functionalities

- Introduced tests for color image handling, ensuring source preservation and premultiplied alpha usage.
- Implemented tests for brush stroke operations, validating segment boundaries and brush anti-aliasing.
- Added tests for frame anti-aliasing, confirming correct rendering behavior with various alpha values and depth settings.
- Created tests for frame projection, ensuring accurate overlap calculations and half-plane clipping.
- Developed tests for image premultiplied retention, verifying behavior during loading and packing processes.
- Added undo functionality tests for mask operations, ensuring single transaction behavior during edits.

src/anyimage/__init__.py

@@ -5,11 +5,10 @@ from .operators.clipboard_image import CLASSES as CLIPBOARD_CLASSES
 from .menu import AnyImageImageMenu, draw_image_context_menu
 from .operators import CLASSES as OPERATOR_CLASSES
 from .operators.cutout_tool import CutoutTool
-from .operators.crop_tool import (
-    CropBoxTool,
-    CropLassoTool,
-    CropPerspectiveTool,
-    CropPolylineTool,
+from .operators.image_edit_tool import (
+    FrameTool,
+    MaskTool,
+    RectifyTool,
 )
 from .panel import (
     Ben2RemovalDebugPanel,
@@ -42,20 +41,15 @@ CLASSES = (
 def register():
     for class_type in CLASSES:
         bpy.utils.register_class(class_type)
-    bpy.utils.register_tool(CropBoxTool, separator=True, group=True)
+    bpy.utils.register_tool(FrameTool, separator=True, group=True)
     bpy.utils.register_tool(
-        CropLassoTool,
-        after={CropBoxTool.bl_idname},
+        MaskTool,
+        after={FrameTool.bl_idname},
         separator=False,
     )
     bpy.utils.register_tool(
-        CropPolylineTool,
-        after={CropLassoTool.bl_idname},
-        separator=False,
-    )
-    bpy.utils.register_tool(
-        CropPerspectiveTool,
-        after={CropPolylineTool.bl_idname},
+        RectifyTool,
+        after={MaskTool.bl_idname},
         separator=False,
     )
     bpy.utils.register_tool(CutoutTool)
@@ -70,10 +64,9 @@ def unregister():
     runtime.unregister()
     clipboard_image.unregister_keymaps()
     bpy.utils.unregister_tool(CutoutTool)
-    bpy.utils.unregister_tool(CropPerspectiveTool)
-    bpy.utils.unregister_tool(CropPolylineTool)
-    bpy.utils.unregister_tool(CropLassoTool)
-    bpy.utils.unregister_tool(CropBoxTool)
+    bpy.utils.unregister_tool(RectifyTool)
+    bpy.utils.unregister_tool(MaskTool)
+    bpy.utils.unregister_tool(FrameTool)
     bpy.types.VIEW3D_MT_object_context_menu.remove(draw_image_context_menu)
     bpy.types.OUTLINER_MT_object.remove(draw_image_context_menu)
     if hasattr(bpy.types.Scene, "anyimage_settings"):