chore(plugin-chart-pivot-table): migrate react-pivottable into superset codebase

[kgabryje]

SUMMARY

The Pivot Table v2 chart is based on a forked and heavily modified library react-pivottable.
The fork is available here: https://github.com/apache-superset/react-pivottable

Since the monorepo project is finished and we've migrated our viz plugins to the main repo, it's a good time to do the same to react-pivottable fork.
Currently very few people are aware of existence of that repo and even fewer contribute to it (to be precise, only I do). Moving that repo to the main codebase would make it easier for community contributors to work on improving and maintaining the Pivot Table chart.
I'm not concerned about keeping our version of react-pivottable in sync with the original - it hasn't been updated for over the year.
After this PR is accepted and merged, https://github.com/apache-superset/react-pivottable will be archived.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

Everything should look and work the same as before

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

https://app.shortcut.com/preset/story/33685/migrate-react-pivottable-fork-repo-into-main-superset-repo

[zhaoyongjie]

Thanks for this relocation!

[villebro]

LGTM and tested to work well - good to go once CI is green 👍

[codecov]

Codecov Report

Merging #17769 (e18bfdc) into master (124af4c) will decrease coverage by 0.61%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master   #17769      +/-   ##
==========================================
- Coverage   67.71%   67.10%   -0.62%     
==========================================
  Files        1604     1609       +5     
  Lines       64186    64785     +599     
  Branches     6786     6855      +69     
==========================================
+ Hits        43464    43474      +10     
- Misses      18867    19455     +588     
- Partials     1855     1856       +1     

Flag	Coverage Δ
javascript	53.90% <0.00%> (-0.92%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...s/plugin-chart-pivot-table/src/PivotTableChart.tsx	0.00% <0.00%> (ø)
...rt-pivot-table/src/react-pivottable/PivotTable.jsx	0.00% <0.00%> (ø)
...n-chart-pivot-table/src/react-pivottable/Styles.js	0.00% <0.00%> (ø)
...ivot-table/src/react-pivottable/TableRenderers.jsx	0.00% <0.00%> (ø)
...hart-pivot-table/src/react-pivottable/utilities.js	0.00% <0.00%> (ø)
...src/dashboard/components/PropertiesModal/index.tsx	66.03% <0.00%> (-0.85%)	⬇️
...DataTable/utils/sortAlphanumericCaseInsensitive.ts	100.00% <0.00%> (ø)
...frontend/src/views/CRUD/alert/AlertReportModal.tsx	53.54% <0.00%> (+0.12%)	⬆️
...et-frontend/src/dashboard/actions/nativeFilters.ts	44.31% <0.00%> (+0.49%)	⬆️
...ins/plugin-chart-table/src/DataTable/DataTable.tsx	38.54% <0.00%> (+0.64%)	⬆️

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