Distinguish neg and pos EndCap for Assemblies in DD4hepPlugin (was ACTS-286)
Original author Julia Hrdinka @jhrdinka
Find a way to distinguish negative and positive EndCap in ConvertDD4hepDetector() in case the volume underlying DD4hep volume has no shape (Assembly). The current way (https://gitlab.cern.ch/acts/a-common-tracking-sw/blob/master/Plugins/DD4hepPlugins/src/ConvertDD4hepDetector.cpp#L164) does no work in case of assemblies.