@brief Method is used to add @see MqttSessionListener "MqttSessionListener" class element
which will notify about MQTT session connection state changes.
@note Do not forget to remove listener if it is no longer needed!
@param listener Сorresponding @see MqttSessionListener "MqttSessionListener" class.
@brief Method is used to connect to MQTT broker and start publishing position data.
@param server MQTT broker server hostname or IP address.
@param port MQTT broker server port.
@param username MQTT broker username for authentication.
@param password MQTT broker password for authentication.
@brief Method is used to publish a custom message to a specified MQTT topic.
The message will be sent asynchronously and the result will be notified through
@see MqttSessionListener "MqttSessionListener" callbacks (onMessagePublished for success, onError for failure).
@note The MQTT session must be connected before calling this method. Use @see MqttSession::connect "connect" method first.
@param topic MQTT topic to publish the message to. Can be any valid MQTT topic string.
@param message Message content to publish. Can be any string (JSON, plain text, etc.).
@brief Method is used for removing previously added @see MqttSessionListener "MqttSessionListener" class element.
@param listener Сorresponding @see MqttSessionListener "MqttSessionListener" class to remove.
@brief Method is used to set MQTT sub-topic for publishing position data.
The final topic will be "navigine/mobile/positions/" + subTopic + "/" + deviceId.
@param subTopic MQTT sub-topic for publishing position data. Must match pattern 0-9a-zA-Z_-+ and cannot be empty.
