IReadOnlyList<T> for options list

I'd like to suggest list options support more than just `IEnumerable` properties. `IEnumerable` is not a great choice for list properties because it hides information about the underlying collection (order, count).

Adding support for `IReadOnlyList` would be very helpful because it is both ordered (supports an indexer), and has a count. Support for arrays, `ICollection`, `List`, `IList`, `IReadOnlyCollection` are also things that could be considered.

首先定位 IEnumerable 的选项属性处理逻辑，并跟踪列表值的解析方式。将所请求的 IReadOnlyList 行为与数组、ICollection、List、IList 和 IReadOnlyCollection 进行比较。当受支持的集合类型具备明确定义且一致的选项行为，并覆盖所请求的情况时，工作即完成。

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