Reduce the verbosity of Simulation jobs
Currently simulation jobs write out ~1800 lines of INFO messages during initialization and finalization.
This MR updates most of the INFO messages related to sensitive detector configuration to be DEBUG or VERBOSE (plus two to be WARNING!).
Some INFO messages related to G4PhysicsRegion configuration are adjusted so that they are protected by a check on flags.Exec.QuiteMode as is already the case for internal Geant4 verbosity.
Edited by John Derek Chapman