* MqttRpcClient now adds ResponseTopic to MqttApplicationMessage when using MQTT v5
* No need for conditional protocol check (ResponseTopic property won't be added by PacketFormatter in <MQTT v5)
* Cleanup: Remove using
- adding client and server wrappers to verify the clientid starts with the testname
- adding disposable baseclass
- clear disconnect handler from client so it does not try to reconnect after it is disposed
- moved code from dispose to cleanup in case it is called in a stop method as dispose may only be called once while start / stop may be called multiple times
Michi
Christian
JanEggers