one week util

Utils.cs

@@ -43,6 +43,8 @@ namespace SignalsTest
                     return 60 * 24;
                 case KlineInterval.ThreeDays:
                     return 60 * 24 * 3;
+                case KlineInterval.OneWeek:
+                    return 60 * 24 * 7;
 
                 default:
                     return 0;