Allow for smartless configuration of volumes in Geant4

[MarkusFrankATcernch]

BEGINRELEASENOTES

• If memory is an issue, the Geant4 memory consumption can be reduced using the smartless option of
  G4LogicalVolume entities. This MR exposes this feature of Geant4 to dd4hep.
  Example fragment of the code:

    Volume vol = ....;
    // 2 is the Geant4 voxelization default. 0 means no voxelization,
    // values bigger than 2 will need more memory.
    int value =  0 .... 5; 
    vol.setSmartlessValue(value);
  

  Fixes Controlling Geant4 smart voxelization from the detector constructor #1361
  • An example (+test) is supplied as well:
    • ClientTests/compact/DriftChamber.xml
    • ClientTests/scripts/DriftChamber.py
      where the voxelization is reduced.

ENDRELEASENOTES

[github-actions]

Test Results

   14 files     14 suites   5h 49m 53s ⏱️
  369 tests   367 ✅ 0 💤 2 ❌
2 538 runs  2 536 ✅ 0 💤 2 ❌

For more details on these failures, see this check.

Results for commit 42879c7.

♻️ This comment has been updated with latest results.