Add MQTT autodiscovery for HA MQTT Addon

src/main.py

@@ -2,11 +2,12 @@ import logging
 from volvo import authorize
 from mqtt import update_loop, connect
 from const import VERSION
-from util import set_tz, setup_logging
+from util import set_tz, setup_logging, set_mqtt_settings
 
 
 if __name__ == '__main__':
     set_tz()
+    set_mqtt_settings()
     setup_logging()
     logging.info("Starting volvo2mqtt version " + VERSION)
     authorize()