fix:improve PictorialBarSeriesOption

[dmzc]

Brief Information

This pull request is in the type of:

• bug fixing
• new feature
• others

What does this PR do?

Let the interface PictorialBarSeriesOption extends the interface SeriesEncodeOptionMixin .

Fixed issues

No issues.

Details

Before: What was the problem?

The interface PictorialBarSeriesOption don't extends interface SeriesEncodeOptionMixin.
But PictorialBar supports the config encode as document describled.
So,this PR was produced to improve the definition of PictorialBar.

After: How is it fixed in this PR?

Let the interface PictorialBarSeriesOption extends interface SeriesEncodeOptionMixin .

Misc

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

Related test cases or examples to use the new APIs

N.A.

Others

Merging options

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

Other information

[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.

[Ovilia]

Please update PR description to let us know what this PR does and why it's necessary.

[dmzc]

Please update PR description to let us know what this PR does and why it's necessar

[dmzc]

Please update PR description to let us know what this PR does and why it's necessary.

The PR description is completed

[Ovilia]

I check the code and the following series don't have SeriesEncodeOptionMixin. @100pah Can you confirm if there are any missing by mistake?

• Treemap
• Tree
• Sunburst
• Lines
• Graph
• Sankey
• ThemeRiver
• Pictorial (the only one that has encode in the doc)

[echarts-bot]

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

[100pah]

@Ovilia

I check the code and the following series don't have SeriesEncodeOptionMixin. @100pah Can you confirm if there are any missing by mistake?

Treemap
Tree
Sunburst
Lines
Graph
Sankey
ThemeRiver
Pictorial (the only one that has encode in the doc)

Tree based data source (Treemap, Tree, Sunburst) and graph based data source (Graph, Sankey ) theoretically can use encode, but we might not ready to use it (e.g., no test case yet).

Lines and ThemeRiver have special data source, which we are not sure whether it is suitable to use encode yet.