[ENH]Enhancement needed by the former request of a Deliberation feature: New forum setting to allow optional display in each forum reply to a thread topic of the Rating by each user to that forum thread topic. Use case: ease the task to reach consensus on deliberations (in forum threads) by identifying in a more clear way the position (topic rating) of each person on that topic at each moment on the discussion. Thanks Marti Olivella for the idea based on your deliberation software. It will be backported to 12.x after 12.1 is released

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@50153 b456876b-0849-0410-b77d-98878d47e9d5