[Behavior Proposal]: Using WordsSegmenter to TextBoxBase.AutoWordSelection

Now the TextBoxBase.AutoWordSelection will select the words base. But some culture langurage use characters instead of words, such as Chinese and so on. That means the `TextBoxBase.AutoWordSelection = true` will do nothing, as `TextBoxBase.AutoWordSelection = false`

The `TextBoxBase.AutoWordSelection` will use blank characters to split the words, not the culture rules. And I find the [WordsSegmenter](https://learn.microsoft.com/en-us/uwp/api/windows.data.text.wordssegmenter) can split the words depending on the particular language.

We can make the TextBoxBase.AutoWordSelection better by using [WordsSegmenter](https://learn.microsoft.com/en-us/uwp/api/windows.data.text.wordssegmenter)