feat: treemap / sunburst / pie / donut charts

[monfera]

Summary

1st round of hierarchical, partitioning visualizations. Fixes #84 including #381 (comment)
Other related issues: #381 #464 #492

Treemap:

Sunburst:

Donut:

Mid-transition from possible future tweening:

Features we can lift:

• multiline, adaptive size, flexible shape text rendering
• text color inversion on light surfaces for accessibility
• hierarchical data processing with Typescript-only code (analogy: GROUP BY ROLLUP)
• compact, sunburst and treemap layout code in TS
• possibility of automatically generating configuration knobs
• many config options can be tweened/animated in the future

Checklist

Use strikethroughs to remove checklist items you don't feel are applicable to this PR.

• Any consumer-facing exports were added to src/index.ts (and stories only import from ../src except for test data & storybook)
• This was checked for cross-browser compatibility, including a check against IE11
• Proper documentation or storybook story was added for features that require explanation or tutorials
• Unit tests were updated or added to match the most common scenarios
• Each commit follows the convention

[codecov-io]

Codecov Report

Merging #493 into master will increase coverage by 0.21%.
The diff coverage is 53.84%.

@@            Coverage Diff             @@
##           master     #493      +/-   ##
==========================================
+ Coverage   75.15%   75.36%   +0.21%     
==========================================
  Files         192      192              
  Lines        5744     5769      +25     
  Branches     1062     1114      +52     
==========================================
+ Hits         4317     4348      +31     
+ Misses       1411     1405       -6     
  Partials       16       16

Impacted Files	Coverage Δ
src/chart_types/xy_chart/utils/interactions.ts	100% <ø> (ø)	⬆️
src/utils/accessor.ts	45.45% <ø> (ø)	⬆️
src/specs/index.ts	100% <ø> (ø)	⬆️
src/chart_types/xy_chart/utils/specs.ts	100% <ø> (ø)	⬆️
src/utils/commons.ts	100% <ø> (ø)	⬆️
..._types/xy_chart/state/selectors/get_cursor_band.ts	90.32% <ø> (ø)	⬆️
src/utils/data_generators/data_generator.ts	78.94% <0%> (-21.06%)	⬇️
.../chart_types/partition_chart/state/chart_state.tsx	61.9% <0%> (ø)	⬆️
...art_types/partition_chart/layout/utils/sunburst.ts	10.52% <0%> (ø)	⬆️
src/specs/settings.tsx	100% <100%> (ø)	⬆️
... and 45 more

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[markov00]

Code wise looks good to me.
I've added few comments on coding conventions that should be addressed and some one more important related to missing exported types.
We have to add snapshot tests. I can do that in a different PR

[monfera]

Some failed CI runs due to cancelled runs and not checking in yarn.lock early enough

[markov00]

🎉 This PR is included in version 16.2.0 🎉

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

Your semantic-release bot 📦🚀