When player skins a creature it will tell instance aswell.

closes #614

src/game/Entities/Player/Player.cpp

@@ -9269,6 +9269,12 @@ void Player::SendLoot(uint64 guid, LootType loot_type)
                 loot->FillLoot(creature->GetCreatureTemplate()->SkinLootId, LootTemplates_Skinning, this, true);
                 permission = OWNER_PERMISSION;
 
+                //Inform instance if creature is skinned.
+                if (InstanceScript* mapInstance = creature->GetInstanceScript())
+                {
+                    mapInstance->CreatureLooted(creature, LOOT_SKINNING);
+                }
+
                 // Xinef: Set new loot recipient
                 creature->SetLootRecipient(this, false);
             }

src/game/Instances/InstanceScript.h

@@ -134,6 +134,9 @@ class InstanceScript : public ZoneScript
         //On load
         virtual void Load(char const* data) { LoadBossState(data); }
 
+        //Called when creature is Looted
+        virtual void CreatureLooted(Creature* /*creature*/, LootType) {}
+
         //When save is needed, this function generates the data
         virtual std::string GetSaveData() { return GetBossSaveData(); }