Add @superset-ui/chart with extract modules and additional unit tests

[kristw]

🏆 Enhancements

• Migrate Chart registries and data structures from incubator-superset.
• No new features. Only add unit tests to ensure 100% code coverage!

Note: Haven't moved SuperChart here yet. Will do that in a separate review.

[codecov]

Codecov Report

Merging #23 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #23   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          30     37    +7     
  Lines         260    322   +62     
=====================================
+ Hits          260    322   +62

Impacted Files	Coverage Δ
.../src/registries/ChartComponentRegistrySingleton.js	100% <100%> (ø)
...t/src/registries/ChartMetadataRegistrySingleton.js	100% <100%> (ø)
...src/registries/ChartBuildQueryRegistrySingleton.js	100% <100%> (ø)
...registries/ChartTransformPropsRegistrySingleton.js	100% <100%> (ø)
...ages/superset-ui-chart/src/models/ChartMetadata.js	100% <100%> (ø)
...ackages/superset-ui-chart/src/models/ChartProps.js	100% <100%> (ø)
...ckages/superset-ui-chart/src/models/ChartPlugin.js	100% <100%> (ø)
... and 4 more

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[mistercrunch]

LGTM 💯

[williaster]

LGTM! 🔥🔥🔥