ACTSFW-103_updateDD4hepExamples
Depends on !90 (merged) and !96 (merged) and should be merged afterwards. This MR includes:
- clean up and clear structuring of the Detectors/DD4hep/compact repository
- re-testing & re-enabling building of all different geometries
- Adding the current FCChh Muon system to the repository (build standalone + with tracker possible now)
- synchronising FCChh tracker description with newly released FCCSW v0.9
- builds digitization modules for FCC geometry
- sets sensor size in FCChh tracker to 100mum everywhere(as recently agreed on in tracker design) Fixes ACTSFW-103