Add comments to clarify error handling in namespace package finder

Author: Johan Broberg

libraries/microsoft-agents-a365-tooling/microsoft_agents_a365/tooling/extensions/__init__.py

@@ -25,4 +25,6 @@
                     if path not in __path__ and not path.endswith(".__path_hook__"):
                         __path__.append(path)
         except (ImportError, TypeError):
+            # Silently skip finders that don't support our find_spec call signature
+            # or fail to locate the module - we'll try other finders in meta_path
             pass