Implement avatar animation and skinning (#67)

tools/generate_rust_mapping.py

@@ -985,12 +985,17 @@ def validate_generated_shims() -> None:
                     "crate::agent_manager::",
                     "crate::agent_messages::",
                     "crate::agent_movement::",
+                    "crate::animation::",
+                    "crate::animesh_runtime::",
+                    "crate::animesh_skinning::",
                     "crate::asset_cache::",
                     "crate::asset_manager::",
                     "crate::asset_material::",
                     "crate::asset_models::",
                     "crate::appearance_baker::",
                     "crate::appearance_manager::",
+                    "crate::avatar_manager::",
+                    "crate::avatar_rig::",
                     "crate::baking_texture_provider::",
                     "crate::byte_order::",
                     "crate::attention_catalog::",
@@ -1021,6 +1026,7 @@ def validate_generated_shims() -> None:
                     "crate::xml_codec::",
                     "stored_visual_params",
                     "self.native_",
+                    "left.native_equals(",
                 )
             )
             if uses_standardized_or_native_path: