[Feature] label overlap can expose a hook which let caller deside which label can be ignored filter and can be draw

[kkxxkk2019]

What problem does this feature solve?

在图表助手上支持单标签的显示隐藏，这里遇到了一个问题，如果图表标签因为防重叠没有展示，我目前没有办法开启，因为这个标签根本没有绘制，期望能够支持一个钩子可以让用户指定忽略那个 label

What does the proposed API look like?

NA

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What problem does this feature solve?

The chart assistant supports the display and hiding of single labels. I encountered a problem here. If the chart label is not displayed due to anti-overlap, I currently have no way to enable it because the label is not drawn at all. I hope to support a hook that allows the user to specify which label to ignore.

What does the proposed API look like?

NA