Add performance tests

[archmoj]

To run all the tests for various traces please run:

npm run test-performance

• scatter (modes: markers, lines & markers+lines)
• scattergl (modes: markers, lines & markers+lines)
• scattergeo (modes: markers, lines & markers+lines)
• bar (modes: group, stack, overlay)
• histogram (modes: group, stack, overlay)
• box (modes: show/hide points)
• violin (modes: show/hide points)
• contour
• heatmap
• image

[gvwilson]

I think we can skip benchmarking of pie charts - nobody could make sense of a 1000-item pie chart, so behavior at scale isn't a concern.

[archmoj]

@gvwilson Please find the example output file generated locally:
all.csv
Thank you.

[archmoj]

@gvwilson with previous improvements, each test case is isolated and run inside a fresh window.
The browser is no longer encountered crash on CI (as well as locally).
Here you could find example results: https://app.circleci.com/pipelines/github/plotly/plotly.js/12132/workflows/d9e39715-6d98-48c4-b34c-26d2baf9e57a/jobs/268411/artifacts

Now with this more stable setup we would be able to further increase the number of data points i.e. to test the failing scenarios.

[archmoj]

@gvwilson Now the test results also include the failing cases in both all.csv and failed.csv files.
https://app.circleci.com/pipelines/github/plotly/plotly.js/12142/workflows/98ecc56e-d3f6-4f5d-aff1-723879408090/jobs/268665/artifacts