futility: add version command

BUG=none
BRANCH=none
TEST=manual

make && ./build/futility/futility version

Change-Id: I362b13d3befba62a33bc9fd2e87ad68f4bc62a84
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/226779
Reviewed-by: Randall Spangler <rspangler@chromium.org>
4 files changed