update compose file and scripts to use mosquitto broker. Includes insecure config file for mosquitto

docker/mosquitto.conf

@@ -2,10 +2,9 @@ persistence true
 persistence file mosquitto.db
 persistance_location mosquitto/data
 
-log_dest_file mosquitto/log/mosquitto.log
+
 
 per_listener_settings true
 listener 1883
 allow_anonymous true
-#bind_interface SERVER_PUBLIC_IP