riTRANSXYZ: nnc calculations in place

Making this feaure complete.
Had to add the concept of several results sets to the nnc data

ApplicationCode/ModelVisualization/RivNNCGeometryGenerator.h

@@ -44,7 +44,7 @@ public:
     void setCellVisibility( const cvf::UByteArray* cellVisibilities, const RigGridBase * grid);
     
     void textureCoordinates(cvf::Vec2fArray* textureCoords,  
-        const cvf::ScalarMapper* mapper) const;
+        const cvf::ScalarMapper* mapper, size_t scalarResultIndex) const;
 
     // Mapping between cells and geometry
     cvf::ref<cvf::Array<size_t> >   triangleToNNCIndex() const;