MQTT exporter for EcoFlow products

[berezhinskiy]

Hi, thanks for the great idea about EcoFlow to Prometheus exporter. I have created another exporter which works with the MQTT backend. It supports many metrics and generates them automatically based on MQTT data. Also, the dashboard supports multiple EcoFlow devices. I just thought you might be interested in such functionality: https://github.com/berezhinskiy/ecoflow-mqtt-prometheus-exporter
I have tested it with my DELTA 2, but it should work with other models.
I borrowed from your repo some general ideas and README information. Thanks for that.

[brendanobra]

Wow! that looks great - thanks! I will definitely give yours a try, looks like it has MUCH more data.