add "insidetextorientation" per slice to sunburst charts

The insidetextorientation with possible values of "horizontal", "tangential", "radial" or "auto" works brilliantly :)
Sometimes, I would have liked to have tangential orientation for e.g. the first two branches and then radial for the third branch.
Would it be possible to accomplish this by passing the orientation per slice to insidetextorientation instead of only one value?

Thank you for considering this feature request and thank you for creating plotly!

首先追踪 sunburst chart 的入口点及其对 insidetextorientation 的处理。确定当前如何应用标量方向，以及需要做什么才能接受每个 slice 一个值。完成的标准是：可以为各个 slice 独立选择 horizontal、tangential、radial 和 auto 方向，同时继续支持现有的单值行为。