Assign bone_idx to GLTF importer to fix serialization. Notifies Skeletons and BoneAttachments when reimporting. Removes usage of NOTIFICATION_NODE_RECACHE_REQUESTED
Assign bone_idx to GLTF importer to fix serialization. Notifies Skeletons and BoneAttachments when reimporting. Removes usage of NOTIFICATION_NODE_RECACHE_REQUESTED