This updates the instructions for client and non-client lib freeze to
make sure all changes are captured in a final release. Also adds a
helper tool to separate out the two types of libs since they have
different deadlines.
Change-Id: I29ea73bcc5a9649d7d9c502ebc0a05c840e41484
Signed-off-by: Sean McGinnis <sean.mcginnis@gmail.com>