Extract shared helpers into a new RimCorrelationBarChartTools
namespace so RimCorrelationPlot and RimRftTornadoPlot share a
single source of truth for:
- highlightSelectedParameterBar and the click-to-parameter-name
lookup
- the axis-label format, abs/sort-value math, and the
addBarEntry call (with the "legendText must equal parameter
name" convention) via addCorrelationBar
Also enable click-to-select on RimCorrelationPlot: use the
parameter name as the bar chart title so click-to-select works,
and recolor the selected bar via a new HighlightBarColor field,
mirroring the pattern used in RimRftTornadoPlot.
