Added field Swap to MtOrder class. Mark function OrderSwap as obsolete

MtApi/MtApiClient.cs

@@ -211,6 +211,12 @@ namespace MtApi
 
             return (TradeOperation)retVal;
         }
+
+        [Obsolete("OrderSwap is deprecated, please use GetOrder instead.")]
+        public double OrderSwap()
+        {
+            return SendCommand<double>(MtCommandType.OrderSwap, null);
+        }
         #endregion
 
         #region Trading functions
@@ -440,11 +446,6 @@ namespace MtApi
             return SendCommand<int>(MtCommandType.OrdersTotal, null);
         }
 
-        public double OrderSwap()
-        {
-            return  SendCommand<double>(MtCommandType.OrderSwap, null);
-        }
-
         public bool OrderCloseAll()
         {
             return SendCommand<bool>(MtCommandType.OrderCloseAll, null);

MtApi/MtOrder.cs

@@ -16,6 +16,7 @@ namespace MtApi
         public string Comment { get; set; }
         public double Commission { get; set; }
         public int MagicNumber { get; set; }
+        public double Swap { get; set; }
 
         public DateTime OpenTime
         {