InteractionPlot refactor (#3097)

Summary:
Pull Request resolved: #3097

When this is landed we will be able to use this plot in Ax 1.0 and Ax UI.

Refactor the interaction plot to be in line with our structure for ax.analysis. This includes a massive reduction in overall code (about half) and a full decoupling from ax.plot.

Adds robustness features around generating subplots -- a failed surface subplot will no longer fail the full analysis.

This new version of the plot is slightly more opinionated in that we always plot both the feature importance bar chart AND the top 6 features, always plots top 15 components in the bar chart, never decomposes components, and always has plots share scale. These settings are most useful and help drastically simplify the code, so I think we should keep them for now and only consider adding them back if there is demand.

Differential Revision: D65234856

ax/analysis/plotly/__init__.py

@@ -6,6 +6,7 @@
 # pyre-strict
 
 from ax.analysis.plotly.cross_validation import CrossValidationPlot
+from ax.analysis.plotly.interaction import InteractionPlot
 from ax.analysis.plotly.parallel_coordinates import ParallelCoordinatesPlot
 from ax.analysis.plotly.plotly_analysis import PlotlyAnalysis, PlotlyAnalysisCard
 from ax.analysis.plotly.scatter import ScatterPlot
@@ -15,6 +16,7 @@
 __all__ = [
     "ContourPlot",
     "CrossValidationPlot",
+    "InteractionPlot",
     "PlotlyAnalysis",
     "PlotlyAnalysisCard",
     "ParallelCoordinatesPlot",