git subrepo pull packages/HighFive

subrepo:
  subdir:   "packages/HighFive"
  merged:   "dfc06537f"
upstream:
  origin:   "git@github.com:BlueBrain/HighFive.git"
  branch:   "master"
  commit:   "dfc06537f"
git-subrepo:
  version:  "0.4.9"
  origin:   "git@github.com:ingydotnet/git-subrepo.git"
  commit:   "30db3b8"