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/common/Database/Field.h

@@ -61,6 +61,13 @@ class Field
             return static_cast<int8>(atol((char*)data.value));
         }
 
+#ifdef ELUNA
+        enum_field_types GetType() const
+        {
+            return data.type;
+        }
+#endif
+
         uint16 GetUInt16() const
         {
             if (!data.value)