When building against LCTG88 dependencies, there is a missing
G4MTHepRandom symbol at link time. This might be because the G4 build
has MT disabled.

Using a simpler output format for now, for personal production.

Added generator seeding to the pythia8 processStrings, setting to zero
to use default random seeding mechanism.

Added seeds for the pileup number and all vtx positions using current
time.