Brice_

LibraryMQTT not usable with paho-mqtt 2.0.0

2

``` ValueError: Unsupported callback API version: version 2.0 added a callback_api_version, see migrations.md for details Traceback (most recent call last): File "C:\WINDOWS\ServiceProfiles\NetworkService\AppData\Roaming\Python\Python37\site-packages\MQTTLibrary\MQTTKeywords.py", line 71, in connect self._mqttc = mqtt.Client(client_id, clean_session)...