add module's loop to loop()

src/emsesp.cpp

@@ -1666,6 +1666,7 @@ void EMSESP::loop() {
         publish_all_loop();         // with HA messages in parts to avoid flooding the mqtt queue
         mqtt_.loop();               // sends out anything in the MQTT queue
         webSchedulerService.loop(); // handle any scheduled jobs
+        module_.loop();             // loop the external library modules
 
         // force a query on the EMS devices to fetch latest data at a set interval (1 min)
         scheduled_fetch_values();