get-typod-pick-list.sh: add new script

Typos do happen as people nominate patches for stable. This script aims
to catch most of those.

Due to the subtle nature of things, one has to pay special attention to
the output, similar to get-extra-pick-list.sh.

At the moment only the following is handled:
 grep -i "CC:.*mesa-dev"

Cc: 12.0 13.0 <mesa-stable@lists.freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
(cherry picked from commit f0bdd13f)