updated artg4 physics list to match actual artg4 physics list factory

split config files for the two basic cases
make the 0.7 mm default physics cut explicit in artg4 physics list
deleted EventActionMessanger

moved printModulo into json config file
make PbF2 region and cuts explicit

tweak parameters of EM processes: DEDX, Lambda, fluo
decrease production low energy threshold from 990 eV to 100 eV