Remove shield_pack
shield_pack (simulation/generators/shieldPack) has to be removed since it is no longer used. As it probably the only library built using FORTRAN, support for FORTRAN can be dropped as well (at least for now).
shield_pack (simulation/generators/shieldPack) has to be removed since it is no longer used. As it probably the only library built using FORTRAN, support for FORTRAN can be dropped as well (at least for now).