Implement LMOS Protocol and Message Format in MQTT Binding

[RobWin]

Problem Description:

The current implementation of the MQTT binding does not support the LMOS protocol and its associated message format. This limitation hinders seamless communication and interoperability between agents within the LMOS ecosystem, especially when MQTT is the chosen transport protocol.

Acceptance Criteria:

Extend the existing MQTT binding to support the LMOS protocol, ensuring that all MQTT communications adhere to LMOS standards.
Implement the necessary handlers to process LMOS-specific control messages over MQTT.