Core/SmartScript: update ACTION_GO_SET_GO_STATE

GO_STATE_ACTIVE             = 0,                        // show in world as used and not reset (closed door open)
GO_STATE_READY              = 1,                        // show in world as ready (closed door close)
GO_STATE_ACTIVE_ALTERNATIVE = 2                         // show in world as used in alt way and not reset (closed door open by cannon fire)

Credits to Sunwell

src/server/game/AI/SmartScripts/SmartScriptMgr.h

@@ -552,8 +552,9 @@ enum SMART_ACTION
     SMART_ACTION_RANDOM_SOUND                       = 115,    // soundId1, soundId2, soundId3, soundId4, soundId5, onlySelf
     SMART_ACTION_SET_CORPSE_DELAY                   = 116,    // timer
     SMART_ACTION_DISABLE_EVADE                      = 117,    // 0/1 (1 = disabled, 0 = enabled)
+    SMART_ACTION_GO_SET_GO_STATE                    = 118,    // state
 
-    SMART_ACTION_END                                = 118
+    SMART_ACTION_END                                = 119
 };
 
 struct SmartAction
@@ -1020,6 +1021,11 @@ struct SmartAction
             uint32 flag;
         } goFlag;
 
+        struct
+        {
+            uint32 state;
+        } goState;
+
         struct
         {
             uint32 group;