Core: Add wintergrasp-patch to wintergrasp_cleanup branch - resurrected from an old work-repository, now over as a branch to work on.

Original patch by socolin, cand a ton of contributors :
mathman, joda, spp, silinoron, josh, malcrom, shauren, machiavelli, click, rat, leak, tobmaps, _manuel_, the tcfr team (via socolin), and tons of others for chiming in.

NOTE: THIS IS A WORKING-BRANCH, AND _NOT_ MENT FOR PUBLIC USE OR EVEN CONSIDERED STABLE!

src/server/game/Globals/ObjectAccessor.h

@@ -194,6 +194,7 @@ class ObjectAccessor
         // ACCESS LIKE THAT IS NOT THREAD SAFE
         static Pet * FindPet(uint64);
         static Player* FindPlayer(uint64);
+        static Creature* FindCreature(uint64);
         static Unit* FindUnit(uint64);
         Player* FindPlayerByName(const char* name);
 

src/server/game/Globals/ObjectMgr.h

@@ -836,6 +836,11 @@ class ObjectMgr
             return &mCreatureQuestRelations;
         }
 
+        QuestRelations* GetCreatureQuestInvolvedRelation()
+        {
+            return &mCreatureQuestInvolvedRelations;
+        }
+
         QuestRelationBounds GetCreatureQuestRelationBounds(uint32 creature_entry)
         {
             return mCreatureQuestRelations.equal_range(creature_entry);