* [irobot] iRobot binding
Supports iRobot Roomba and probably some other iRobots (in parts where they
are compatible)
* [irobot] Drop custom hivemq wrapper
setUnsubscribeOnStop() has been introduced in
org.openhab.core.io.transport.mqtt.MqttBrokerConnection, so it can now handle
iRobot's quirks. The custom wrapper is no more needed, remove it
Signed-off-by: Pavel Fedin <pavel_fedin@mail.ru>
Co-authored-by: Fabian Wolter <github@fabian-wolter.de>
