Add function to change orientation or set in front of some unit. It also send packet with move update, so client also will see that creature change orientation.

--HG--
branch : trunk

src/game/Unit.h

@@ -1622,6 +1622,18 @@ class TRINITY_DLL_SPEC Unit : public WorldObject
                 SetOrientation(GetAngle(target));
         }
         bool isInBackInMap(Unit const* target, float distance, float arc = M_PI) const;
+        void ChangeOrient(float fAngle, Unit* pUnit = NULL)
+        {
+            if(!this)
+                return;
+
+            if(!pUnit)
+                this->SetOrientation(fAngle);
+            else
+                this->SetInFront(pUnit);
+
+            this->SendMovementFlagUpdate();
+        }
 
         // Visibility system
         UnitVisibility GetVisibility() const { return m_Visibility; }