Adds `BKE_grease_pencil_copy_layer_parameters` and `BKE_grease_pencil_copy_layer_group_parameters` to copy the parameters of layers and layer groups without copying the data.
Adds `BKE_grease_pencil_copy_layer_parameters` and `BKE_grease_pencil_copy_layer_group_parameters` to copy the parameters of layers and layer groups without copying the data.