This adds a build-time option to automatically generate a list of
authors from git history, and includes it in the documentation by
reading the output from git in a Sphinx extension. When git isn't
available or the project source doesn't appear to be a git checkout, the
list is not generated and gracefully replaced with a message explaining
its absence.
Change-Id: I1e9634a90e84262aafd80590deba9875f4b71a3c
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/86350
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
