Core/PacketIO: Renamed a bunch of opcodes based on more research (only those added after 6.0)

Port From (https://github.com/TrinityCore/TrinityCore/commit/f922c6e7a46a7c712daaaef9b1a72ca865fbe94b)

Source/Game/Handlers/BattleGroundHandler.cs

@@ -221,9 +221,9 @@ namespace Game
             if (bg.IsArena())
                 return;
 
-            PVPLogDataMessage pvpLogData = new PVPLogDataMessage();
-            bg.BuildPvPLogDataPacket(out pvpLogData.Data);
-            SendPacket(pvpLogData);
+            PVPMatchStatisticsMessage pvpMatchStatistics = new PVPMatchStatisticsMessage();
+            bg.BuildPvPLogDataPacket(out pvpMatchStatistics.Data);
+            SendPacket(pvpMatchStatistics);
         }
 
         [WorldPacketHandler(ClientOpcodes.BattlefieldList)]
@@ -581,8 +581,8 @@ namespace Game
         [WorldPacketHandler(ClientOpcodes.RequestRatedBattlefieldInfo)]
         void HandleRequestRatedBattlefieldInfo(RequestRatedBattlefieldInfo packet)
         {
-            RatedBattlefieldInfo ratedBattlefieldInfo = new RatedBattlefieldInfo();
-            SendPacket(ratedBattlefieldInfo);
+            RatedPvpInfo ratedPvpInfo = new RatedPvpInfo();
+            SendPacket(ratedPvpInfo);
         }
 
         [WorldPacketHandler(ClientOpcodes.GetPvpOptionsEnabled, Processing = PacketProcessing.Inplace)]