Replaced time(NULL) on sGameTime.GetGameTime() this is used for better performance.

Original Timer.h divided into 2 parts. Shared project has no need to know about GameTime Singleton.
2 Identical structures with different types are now replaced with one generic templated structure and 2 typedefs.

--HG--
branch : trunk

src/game/DuelHandler.cpp

@@ -25,6 +25,7 @@
 #include "Opcodes.h"
 #include "UpdateData.h"
 #include "Player.h"
+#include "TimeMgr.h"
 
 void WorldSession::HandleDuelAcceptedOpcode(WorldPacket& recvPacket)
 {
@@ -47,7 +48,7 @@ void WorldSession::HandleDuelAcceptedOpcode(WorldPacket& recvPacket)
     DEBUG_LOG("Player 1 is: %u (%s)", pl->GetGUIDLow(),pl->GetName());
     DEBUG_LOG("Player 2 is: %u (%s)", plTarget->GetGUIDLow(),plTarget->GetName());
 
-    time_t now = time(NULL);
+    time_t now = sGameTime.GetGameTime();
     pl->duel->startTimer = now;
     plTarget->duel->startTimer = now;