message: Add llvm dependency to Docker
diff: FROM base/archlinux:latest
  MAINTAINER Nathan Hourt <nat.hourt@gmail.com>
  -RUN pacman --noconfirm --needed -Syu clang ninja cmake git autoconf automake make m4 binutils pkg-config libtool fakeroot boost
  +RUN pacman --noconfirm --needed -Syu clang ninja cmake git autoconf automake make m4 binutils pkg-config libtool fakeroot boost llvm
  RUN mkdir /work
  WORKDIR /work
  COPY * /work/
  