Merge pull request #1019 from canardos/dev-6.0

add lv_obj_set_user_data function

src/lv_core/lv_obj.h

@@ -919,6 +919,14 @@ void lv_obj_get_type(lv_obj_t * obj, lv_obj_type_t * buf);
  * @return pointer to the user data
  */
 lv_obj_user_data_t * lv_obj_get_user_data(lv_obj_t * obj);
+
+/**
+ * Set the object's user data. The data will be copied.
+ * @param obj pointer to an object
+ * @param data user data
+ */
+void lv_obj_set_user_data(lv_obj_t * obj, lv_obj_user_data_t data);
+
 #endif
 
 #if LV_USE_GROUP