Release of RTest as Debian package

The regulation-kernel testing software RTest has been released as .deb package. The regulation kernel and therefore the core element of VERNER can now be executed in Linux systems, without the need for additional dependencys. The software es able to automatically run all RSupport library based RKs and embed them in the existing visualisation. Python based RKs are also supported by the means of included Python modules.

This release has been tested on Linux Mint 18.3 and Linux Mint 19, which means that compatibility with Ubuntu 16.04 is also ensured. The base for this package is Debian Jessie so that it should be compatible with all Linux distributions that are younger than 5 years.