Rename non-standard filename and add missing license section

Author: patrikjuvonen

Shared/mods/deathmatch/logic/luadefs/CLuaElementDefsShared.cpp renamed to Shared/mods/deathmatch/logic/luadefs/CLuaElementDefs.cpp

@@ -1,3 +1,12 @@
+/*****************************************************************************
+ *
+ *  PROJECT:     Multi Theft Auto
+ *  LICENSE:     See LICENSE in the top level directory
+ *  FILE:        Shared/mods/logic/luadefs/CLuaElementDefs.cpp
+ *
+ *  Multi Theft Auto is available from http://www.multitheftauto.com/
+ *
+ *****************************************************************************/
 #include "StdInc.h"
 
 int CLuaElementDefs::GetElementData(lua_State* luaVM)