RadiationMapsMaker: added high E neutrons weights for NIEL
The high energetic neutron NIEL weights (for 800 MeV < E_kin < 9 GeV) were missing. This MR adds the data points and the code for it. The impact in instrumented areas of ATLAS is minimal since the overwhelming majority of neutrons has lower energies and the extrapolation of the lower energetic data points to high energies still accounted for most of the missing ones.