[SIP-6] Migrate visualizations to new directory structure (part 3 - nvd3)

[kristw]

• Add adaptor and transformProps for each component
• Apply the same approach with [SIP-6] Add reactify function and convert world map to new directory structure. #5893 and [SIP-6] Migrate visualizations to new directory structure.  #5949 to remaining visualizations

In this PR
nvd3

Included in PR #5997 (part 2)
BigNumber
MapBox
TimeTable
EventFlow

Remaining for next PR
iframe
markup
deck.gl

This can be reviewed in parallel with #5997. They do not conflict with or depend on each other.

@conglei @williaster

[codecov-io]

Codecov Report

Merging #6006 into master will increase coverage by 0.02%.
The diff coverage is 50%.

@@            Coverage Diff             @@
##           master    #6006      +/-   ##
==========================================
+ Coverage   63.48%   63.51%   +0.02%     
==========================================
  Files         443      446       +3     
  Lines       23753    23760       +7     
  Branches     2638     2638              
==========================================
+ Hits        15080    15090      +10     
+ Misses       8660     8657       -3     
  Partials       13       13

Impacted Files	Coverage Δ
...perset/assets/src/visualizations/nvd3/LineMulti.js	0% <0%> (ø)	⬆️
...uperset/assets/src/visualizations/nvd3/adaptor.jsx	100% <100%> (ø)
superset/assets/src/visualizations/nvd3/NVD3Vis.js	7.82% <100%> (+0.06%)	⬆️
...perset/assets/src/visualizations/nvd3/ReactNVD3.js	100% <100%> (ø)
...t/assets/src/visualizations/nvd3/transformProps.js	21.42% <21.42%> (ø)
...ssets/src/visualizations/models/BasicChartInput.js	85.71% <50%> (-5.96%)	⬇️

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[williaster]

LGTM!