Refactor and clean up codebase by removing unused functions and reorganizing imports

- Removed unused model keys and functions from properties.py.
- Deleted projection.py as its functions were no longer needed.
- Cleaned up model_catalog.py by removing unused model directory function.
- Updated imports in various test files to reflect new module structure.
- Removed deprecated test cases related to image editing tools.
- Added new tests for ONNX runtime provider selection logic.

tests/test_clipboard_image.py

@@ -64,10 +64,10 @@ class ClipboardImageTest(unittest.TestCase):
         operators.__path__ = [str(PROJECT_ROOT / "src" / "anyimage" / "operators")]
         sys.modules["anyimage.operators"] = operators
         cls.addon.clipboard_image = importlib.import_module(
-            "anyimage.operators.clipboard_image"
+            "anyimage.operators.clipboard_image.operators"
         )
-        cls.actions = cls.addon.clipboard_image.actions
-        cls.clipboard = cls.addon.clipboard_image.clipboard
+        cls.actions = importlib.import_module("anyimage.operators.clipboard_image.actions")
+        cls.clipboard = importlib.import_module("anyimage.operators.clipboard_image.clipboard")
 
     @classmethod
     def tearDownClass(cls):