How to add constraints to an int option?

Is it possible to set constraints to an int option so that it have min and max allowed values? I think that's a pretty common scenario, but the following fails:

```csharp
[Option('q', "quality", Default = 80, Min = 1, Max = 100)]
public int Quality { get; set; }

```
With this exception: `System.InvalidOperationException: Scalar option specifications do not support range specification.`

If the library does not provide this functionality how would I implement it on my own and still play nicely with the auto help and error messages that the library automatically outputs on invalid input?

首先追蹤 Option 屬性，以及引發範圍規格例外的純量選項規格路徑。接著檢查函式庫如何產生說明與無效輸入錯誤；完成的標準是支援整數的最小值/最大值限制，同時那些現有輸出維持一致。

由索引模型根據 Issue 內容生成。