Invert default isCurveHighlightSupported flag for RimPlot

- Make default flag = false, thus highlighting must be activated
- To prevent unwanted logic for new RimPlot objects
- Activate highlighting for RimSummaryPlot, RimVfpPlot and RimCorrelationMatrixPlot

ApplicationLibCode/ProjectDataModel/Flow/RimWellAllocationOverTimePlot.h

@@ -62,8 +62,6 @@ public:
         TIME_STEP_COUNT,
     };
 
-    bool isCurveHighlightSupported() const override;
-
 public:
     RimWellAllocationOverTimePlot();
     ~RimWellAllocationOverTimePlot() override;