feat(Select): 增加适应汉字拼音搜索项

[taihangyishui]

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建议：增加拼音搜索选项； 张佬，我学习了周老师 https://blog.csdn.net/alex_zoucn/article/details/140220946这个过后；感觉在搜索前可以利用插件将汉字转成拼音，以适应搜索。请参考，不知道有用没。

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[ArgoZhang]

@taihangyishui 目前组件库不内置汉语拼音相关的库，但是应该增加一个扩展让使用者更方便的扩展出自己的功能。这才是通用组件的核心

[densen2014]

组件库内置这个功能没啥必要, 就参考文章自己实现一下就行