Eluna implementation (#847)

* azerothcore + eluna done.

* Remove the Eluna single thread limit.

* Read Eluna Settings file.

* submodule change.

* fix(test)  Ubuntu - Cant Link Library after Compile

* The ELUNA is disabled by default.

* remove submodule luaEngine.

* some change

* fix a error

* change cmake

* fix: some onplayerchat does not have hooks.

* Eluna: Add BG event Hooks.

* fix:cmake hook AFTER_LOAD_CONF not work.

* Remove the eluna switch.

* Remove some define in the core.

* fix conf file not read in the linux.

* eluna : change bg hook parameter type

* Remove TC log function call

* change bg hook OnBGEnd parameter type.


Note: to enable Eluna, the module is required

src/server/game/Entities/Object/Object.h

@@ -16,6 +16,10 @@
 #include "GridDefines.h"
 #include "Map.h"
 
+#ifdef ELUNA
+class ElunaEventProcessor;
+#endif
+
 #include <set>
 #include <string>
 #include <sstream>
@@ -721,8 +725,11 @@ class WorldObject : public Object, public WorldLocation
     public:
         virtual ~WorldObject();
 
-        virtual void Update (uint32 /*time_diff*/) { }
-
+#ifdef ELUNA
+        virtual void Update(uint32 /*time_diff*/);
+#else
+        virtual void Update(uint32 /*time_diff*/) { };
+#endif
         void _Create(uint32 guidlow, HighGuid guidhigh, uint32 phaseMask);
 
         virtual void RemoveFromWorld()
@@ -735,6 +742,10 @@ class WorldObject : public Object, public WorldLocation
             Object::RemoveFromWorld();
         }
 
+#ifdef ELUNA
+        ElunaEventProcessor* elunaEvents;
+#endif
+
         void GetNearPoint2D(float &x, float &y, float distance, float absAngle) const;
         void GetNearPoint(WorldObject const* searcher, float &x, float &y, float &z, float searcher_size, float distance2d, float absAngle) const;
         bool GetClosePoint(float &x, float &y, float &z, float size, float distance2d = 0, float angle = 0, const WorldObject* forWho = NULL, bool force = false) const;