[echarts]Support Extra Controls on the Time-Series Area Chart for feature parity

[etr2460]

Is your feature request related to a problem? Please describe.
The new time series area chart doesn't allow the viewer of a chart on a dashboard to toggle between a stacked view (with the metric values) and the expanded view (showing percent contribution). This is a really commonly used feature on the nvd3 area chart that should be supported in the new one for feature parity.

The control on the nvd3 area chart:

Describe the solution you'd like
Allow a chart viewer to switch between stacked and expanded views for the area chart using a control on the chart itself

cc: @junlincc and maybe @villebro? Not sure who's owning the echarts migration

[junlincc]

@etr2460 absolutely! it's in our todo list. will get to it asap. please file issues if you see anything is missing in new time-series bar, area and line. we would love to get to full feature parity within a month or so.

[junlincc]

@stephenLYZ i don't think echarts offer those option out of the box, feel free to open a PR in Echarts and we can expedite it.
In terms of UI, they dont have to be under "extra control", we can use
antd radio or button, maybe button for better consistency.

cc @villebro

[junlincc]

@stephenLYZ ^^ lmk if you've seen this issue, take your time to finish other tasks first. thank you thank you!🙏

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[jhult]

Bump.