feat: Adds the ECharts Heatmap chart

[michael-s-molina]

SUMMARY

This PR introduces the ECharts version of the Heatmap chart. In comparison with the legacy version, the new plugin has more accurate percentage calculations, server side sorting to respect row limits, and an improved legend control that allows selecting a subset of values.

Fixes #26092, #25981

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Screen.Recording.2024-03-27.at.09.02.16.mov

TESTING INSTRUCTIONS

Check all features.

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

[codecov]

Codecov Report

Attention: Patch coverage is 15.38462% with 88 lines in your changes are missing coverage. Please review.

Project coverage is 69.82%. Comparing base (d69a187) to head (e5d9183).

Files	Patch %	Lines
...plugin-chart-echarts/src/Heatmap/transformProps.ts	1.40%	70 Missing ⚠️
...ins/plugin-chart-echarts/src/Heatmap/buildQuery.ts	0.00%	9 Missing ⚠️
superset/utils/pandas_postprocessing/rank.py	37.50%	5 Missing ⚠️
...ugins/plugin-chart-echarts/src/Heatmap/Heatmap.tsx	0.00%	2 Missing ⚠️
.../plugin-chart-echarts/src/Heatmap/controlPanel.tsx	66.66%	1 Missing ⚠️
.../plugins/plugin-chart-echarts/src/Heatmap/index.ts	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #25353      +/-   ##
==========================================
+ Coverage   67.47%   69.82%   +2.34%     
==========================================
  Files        1911     1920       +9     
  Lines       75019    75204     +185     
  Branches     8352     8416      +64     
==========================================
+ Hits        50620    52509    +1889     
+ Misses      22349    20631    -1718     
- Partials     2050     2064      +14     

Flag	Coverage Δ
hive	48.93% <44.44%> (?)
mysql	77.90% <44.44%> (-0.01%)	⬇️
postgres	78.01% <44.44%> (-0.01%)	⬇️
presto	53.64% <44.44%> (?)
python	83.14% <44.44%> (+4.98%)	⬆️
sqlite	77.45% <44.44%> (-0.01%)	⬇️
unit	56.75% <44.44%> (?)

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