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/Battlegrounds/Battleground.cpp

@@ -32,7 +32,9 @@
 #include "BattlegroundRV.h"
 #include "Transport.h"
 #include "ScriptMgr.h"
-
+#ifdef ELUNA
+#include "LuaEngine.h"
+#endif
 namespace Trinity
 {
     class BattlegroundChatBuilder
@@ -201,6 +203,10 @@ Battleground::~Battleground()
     for (uint32 i = 0; i < size; ++i)
         DelObject(i);
 
+#ifdef ELUNA
+    sEluna->OnBGDestroy(this, GetBgTypeID(), GetInstanceID());
+#endif
+
     sBattlegroundMgr->RemoveBattleground(GetBgTypeID(), GetInstanceID());
     // unload map
     if (m_Map)
@@ -493,6 +499,10 @@ inline void Battleground::_ProcessJoin(uint32 diff)
 
         StartingEventOpenDoors();
 
+#ifdef ELUNA
+        sEluna->OnBGStart(this, GetBgTypeID(), GetInstanceID());
+#endif
+
         SendWarningToAll(StartMessageIds[BG_STARTING_EVENT_FOURTH]);
         SetStatus(STATUS_IN_PROGRESS);
         SetStartDelayTime(StartDelayTimes[BG_STARTING_EVENT_FOURTH]);
@@ -1037,6 +1047,10 @@ void Battleground::EndBattleground(TeamId winnerTeamId)
 
     if (winmsg_id)
         SendMessageToAll(winmsg_id, CHAT_MSG_BG_SYSTEM_NEUTRAL);
+
+#ifdef ELUNA
+    sEluna->OnBGEnd(this, GetBgTypeID(), GetInstanceID(), winnerTeamId);
+#endif
 }
 
 uint32 Battleground::GetBonusHonorFromKill(uint32 kills) const