basic OH3 restAPI support
basic OH3 restAPI support

+introduced config parameter openHAB-Version (float) to allow
communication to old and new API
+introduced config parameter API-Token (string) to set an authentication
token
*modified the init and publish code to respect openHAB-Version and
API-Token
rkoshak/mqttReporter,rkoshak/mqttReporter,rkoshak/sensorReporter