E3DC POC

This is a prove of concept for an E3DC binding using the RSCP interface. That work is greatly benefiting from prework that @bvotteler has done with his java library.
This POC does only read values.

You need to put the Jar from below in the addon folder together with the Bouncycastle encryption library (https://www.bouncycastle.org/download/bcprov-jdk15on-168.jar).