Feature: Add Support for MQTT Dash
Add support for MQTT Dash with an automatic dashboard of the panel. This is trivial for 2 partitions (MG/SP). EVO with more partitions may require a different approach

![mqtt_dash](https://user-images.githubusercontent.com/497717/52603920-d4984d80-2e60-11e9-9772-578b10576b3c.jpg)

