Added MQTT support

Thanks for the help Renato - I think I see my problem. I’m assuming your ip address 192.168.1.50 you have setup in WD is your mqtt server?

I didn’t realise I needed a mqtt server - I have a Solar/Power meter that directly outputs mqtt and I’ve been able to connect and receive data using Node-Red running on my Synology directly connected to the solar meter without needing a mqtt server. I (wrongly) assumed WD was also able to also directly connect without a mqtt server.

So now I’ll investigate mqtt servers - it may be better to run the mqqt server on my Synology than on the Windows10 laptop that WD is currently running.
I’ll try again tonight
Regards
Ian