外部点击事件触发图表事件

- [ ] I have searched the [issues](https://github.com/antvis/f2/issues) of this repository and believe that this is not a duplicate.

### What problem does this feature solve?
应用场景是：切换 tabs 选中饼图对应的区块。
查看文档和Issues介绍的都是作用于canvas联动事件，而没有作用于外部dom事件触发图表事件的介绍，有什么api能够通过点击按钮触发图表事件

### What does the proposed API look like?
`
点击选中饼图的某个区域`

Review the chart event documentation and existing event APIs described in the issue, then determine how an external button could target a pie-chart segment rendered in the canvas. Done means documenting or exposing a supported API that lets a button or tab selection trigger the corresponding chart event.

Written by the indexing model from the issue text.