Create a separte package Geant4-vecgeom-scalar where we build Geant4 compiled...
This MR:
- adjusts default Geant4 builds to utilize native Geant4 shapes, eliminating the need for VecGeom.
- introduces an additional Geant4 build using VecGeom in scalar mode, which will be available as Geant4-vecgeom-scalar.
- oatches Vc to prevent any interference with X11 header.
- corrects the names of VecGeom CMake configuration parameters. Previously, these parameters were being ignored, but now they are properly used.
Edited by Dmitri Konstantinov