Allow review.URL.autoupload to skip prompting during `repo upload`

If review.URL.autoupload is set to true in a project's .git/config
or in ~/.gitconfig then `repo upload` will automatically upload,
and skip prompting the end-user.

Conversely, if review.URL.autoupload is set to false, then repo
will refuse to upload to that project.

Bug: REPO-25
Signed-off-by: Shawn O. Pearce <sop@google.com>
1 file changed