Use namespace in GeoMaterial names
Using the geometry "namespace" in GeoMaterial
names fixes most of the duplicate G4Material
warnings discussed in
ATLASSIM-4679. After this change only the trt::CO2
G4Material
is created twice. This will be fixed in a later merge request.
Renaming the GeoMaterial
obejcts does not change the simulation output, this is reassuring as it suggests that the intended materials were already being used everywhere.