Add "SUDO Integration" design page
It's a copy & paste from the old one.
There were some images missing, thus a "FIXME" has been added for each
of the missing images (and those should be updated whenever we find
them).
Signed-off-by: Fabiano FidĂȘncio <fidencio@redhat.com>
(cherry picked from commit 30fd838e57d77433b994c80f9b531ca25574c17b)