#11109 Improve visualization of MSW with valve branches

Increase default segment threshold to 4
Add an optional setting to override the default value
Use this threshold to merge short branches into parent branch

ApplicationLibCode/ProjectDataModel/Intersections/RimExtrudedCurveIntersection.h

@@ -209,4 +209,4 @@ private:
 
     caf::PdmField<bool>    m_kFilterCollectionOverride;
     caf::PdmField<QString> m_kFilterCollectionText;
-};
+};