Introducing confined volume logic for TrackingVolume and DD4hep
Using the extension architecture from ACTS-534 the propagation through a muon system which involves confined volumes can be implemented. The confined volumes are be treated as floating objects like a module of MDTs in ATLAS. Besides a first Acts implementation, this MR includes adds a structure to perform a translation of confined volumes in DD4hep into Acts
Closes ACTS-536
Edited by Fabian Klimpel