Support linking of 2D intersection views

* Major refactor from RimGridView to Rim3dView
* Move view linker/controller functions to Rim3dView
* Add bitmask to define the content of a 3D view
* Link views based on matching content
* Enable bit mask operators at global scope
* Make it possible to use 2d intersection views as comparison views
* Fix crash when a view used as comparison view is deleted
* Move unlinking to Rim3dView

* Add options to snapshot only 3D views/plots as part of regression testing
* WBS plot: Improve default name, hide axis for some tracks

ApplicationLibCode/GeoMech/GeoMechVisualization/RivFemElmVisibilityCalculator.cpp

@@ -257,7 +257,9 @@ void RivFemElmVisibilityCalculator::computeOverriddenCellVisibility( cvf::UByteA
     CVF_ASSERT( elmVisibilities != nullptr );
     CVF_ASSERT( femPart != nullptr );
 
-    RimGridView*              masterView        = masterViewLink->ownerViewLinker()->masterView();
+    RimGridView* masterView = dynamic_cast<RimGridView*>( masterViewLink->ownerViewLinker()->masterView() );
+    if ( !masterView ) return;
+
     cvf::ref<cvf::UByteArray> totCellVisibility = masterView->currentTotalCellVisibility();
 
     int elmCount = femPart->elementCount();