DB/Misc: Lithe Stalker Quests

Fix: -

http://www.wowhead.com/quest=13146 Generosity Abounds
http://www.wowhead.com/quest=13147 Matchmaker
http://www.wowhead.com/quest=13160 Stunning View

Closes https://github.com/TrinityCore/TrinityCore/issues/11855
Closes https://github.com/TrinityCore/TrinityCore/issues/13487