GeoModel - ATLAS Beam pipe
This MR considers the reading of GeoModel files. In this particular case, the MR targets the reading of a ATLAS db file. In order to keep the MR small enough, only the beam pipe translation to Acts will be added in this MR. Since this is just a piece of the ATLAS detector a couple of debug functions will remain in this MR for future work on the translation.
Handles #142 partly
Edited by Fabian Klimpel