Add SUSY-HIT
PYTHIA8, env-PYTHIA8: add LHAPDF to PYTHIA8Env
Merge branch 'master' of ianwookim.org:/home/wavewave/repo/src/hep-nix-overlay
Merge pull request #3 from cbpark/susyhit

Add SUSY-HIT
env-SUSY-HIT: add the environment for SUSY-HIT providing unpack