Add notification + log for applying cheat changes. English only.

managers/cheat_manager.c

@@ -97,6 +97,8 @@ void cheat_manager_apply_cheats(void)
          core_set_cheat(&cheat_info);
       }
    }
+    runloop_msg_queue_push("Applying cheat changes.", 1, 180, true);
+    RARCH_LOG("Applying cheat changes.\n");
 
 #ifdef HAVE_CHEEVOS
    data_bool = idx != 0;