fix(pie): label layout and text wrapping

[Ovilia]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Fix pie label layout in multiple cases. Here are some of the typical cases:

A. Plain text cannot control wrapping and may be displayed outside of the canvas

(Left: before; Right: after)

B. The distances between labelLine and labels are not correct due to the width calculation

C. The background area of rich text is not correct

D. Line width of rich text is not correct

E. When the text width is explicitly set, rich text area breaks the width constraint.

Most of the problems relates to text bounding rect calculation and this PR also fixes related logic with pie charts.

A full list of changes are listed in the "View Visual Test Result" part of this PR.

Fixed issues

#16023

Misc

• The API has been changed (apache/echarts-doc#xxx).
• This PR depends on ZRender changes (fix(text): rich text overflow ecomfe/zrender#847).

Related test cases or examples to use the new APIs

test/pie-label-alignTo-adjust.html

Others

Merging options

• Please squash the commits into a single one when merge.

Other information

• Run visual test of pie charts.

[echarts-bot]

Thanks for your contribution!
The community will review it ASAP. In the meanwhile, please checkout the coding standard and Wiki about How to make a pull request.

The pull request is marked to be PR: author is committer because you are a committer of this project.

This PR depends on ZRender changes. Please update the ZRender dependency to the latest nightly version including this change, which takes place everyday at 8:00 UTC (16:00 Beijing Time).
You can use npm i zrender@npm:zrender-nightly to update package.json.
If you have any question about this, please leave a comment and we will give you extra help on this.

[Ovilia]

TODO:

• Explain the diff of visual test result if necessary.
• Code style cleaning.

[Ovilia]

@pissang Thanks for your review. I've made a new commit to fix them and no new diff in this commit. Please review again when you have time.

[echarts-bot]

Congratulations! Your PR has been merged. Thanks for your contribution! 👍