Surface: click on surface in 3d view to display value (#7702)

* Support showing result info for surfaces when clicking on them in the 3d view

ApplicationLibCode/ModelVisualization/Surfaces/RivSurfacePartMgr.h

@@ -33,6 +33,7 @@ class DrawableGeo;
 class RimSurfaceInView;
 class RigSurface;
 class RigResultAccessor;
+class Rim3dView;
 
 class RivSurfaceIntersectionGeometryGenerator;
 
@@ -47,6 +48,8 @@ public:
 
     void appendNativeGeometryPartsToModel( cvf::ModelBasicList* model, cvf::Transform* scaleTransform );
 
+    QString resultInfoText( Rim3dView* view, uint hitPart, cvf::Vec3d hitPoint );
+
 private:
     void generatePartGeometry();