优化检测input料仓状态为backed时也是就绪的

Rs.SkyLine/Flow/StockManager.cs

@@ -51,7 +51,7 @@ namespace Rs.MotionPlat.Flow
         }
         public bool IsReady()
         {
-            return (Input.Status == EStockTrayStatus.Loaded
+            return ((Input.Status == EStockTrayStatus.Loaded||Input.Status== EStockTrayStatus.Backed)
                 && Ok.Status == EStockTrayStatus.Loaded
                 && Ng.Status == EStockTrayStatus.Loaded
                 && Multi.Status == EStockTrayStatus.Loaded);