[Feature Request] Add support for configuring Bond Hub to local MQTT Broker

[pickerin]

With all of the support we have within Home Assistant for MQTT, I just stumbled on the fact that the Bond Hub can be configured to disconnect from the Bond Cloud and only work via a local MQTT Broker. Would love the Integration to natively support doing this (and reversing it):

http://docs-local.appbond.com/#tag/MQTT