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/Chat/Chat.cpp

@@ -24,6 +24,10 @@
 #include "ScriptMgr.h"
 #include "ChatLink.h"
 
+#ifdef ELUNA
+#include "LuaEngine.h"
+#endif
+
 bool ChatHandler::load_command_table = true;
 
 std::vector<ChatCommand> const& ChatHandler::getCommandTable()
@@ -272,6 +276,10 @@ bool ChatHandler::ExecuteCommandInTable(std::vector<ChatCommand> const& table, c
         {
             if (!ExecuteCommandInTable(table[i].ChildCommands, text, fullcmd.c_str()))
             {
+#ifdef ELUNA
+                if (!sEluna->OnCommand(GetSession() ? GetSession()->GetPlayer() : NULL, oldtext))
+                    return true;
+#endif
                 if (text[0] != '\0')
                     SendSysMessage(LANG_NO_SUBCMD);
                 else
@@ -421,6 +429,10 @@ bool ChatHandler::ParseCommands(char const* text)
 
     if (!ExecuteCommandInTable(getCommandTable(), text, fullcmd))
     {
+#ifdef ELUNA
+        if (!sEluna->OnCommand(GetSession() ? GetSession()->GetPlayer() : NULL, text))
+            return true;
+#endif
         if (m_session && AccountMgr::IsPlayerAccount(m_session->GetSecurity()))
             return false;