3분봉 처리 및 time stamp로 처리 하도록 수정

BitgetApi/WebService/WebConnection.cs

@@ -295,6 +295,10 @@ namespace BitgetAPI.WebService
                             {
                                 return JsonConvert.DeserializeObject<Dictionary<string, object>>(resResult);
                             }
+                        case ExchangeWebReqType.BitgetGetTimeStamp:
+                            {
+                                return JsonConvert.DeserializeObject<Dictionary<string, object>>(resResult);
+                            }
                             #endregion
                     }
                 }