surface LIC - stl and NULL
surface LIC - stl and NULL

BUG 0014493. cast to pointer type when using NULL
to intialize stl containers of pointers.

Change-Id: I60f0f36bda0e491dc15c519ff5110ba21463c3f7

demarle/VTK,sankhesh/VTK,sankhesh/VTK,msmolens/VTK,keithroe/vtkoptix,johnkit/vtk-dev,keithroe/vtkoptix,demarle/VTK,hendradarwin/VTK,sumedhasingla/VTK,johnkit/vtk-dev,candy7393/VTK,ashray/VTK-EVM,sankhesh/VTK,gram526/VTK,sumedhasingla/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,SimVascular/VTK,candy7393/VTK,candy7393/VTK,hendradarwin/VTK,SimVascular/VTK,gram526/VTK,ashray/VTK-EVM,candy7393/VTK,demarle/VTK,jmerkow/VTK,berendkleinhaneveld/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,msmolens/VTK,sankhesh/VTK,sumedhasingla/VTK,ashray/VTK-EVM,keithroe/vtkoptix,sumedhasingla/VTK,candy7393/VTK,jmerkow/VTK,jmerkow/VTK,johnkit/vtk-dev,gram526/VTK,mspark93/VTK,msmolens/VTK,sankhesh/VTK,sumedhasingla/VTK,mspark93/VTK,keithroe/vtkoptix,sankhesh/VTK,msmolens/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,jmerkow/VTK,hendradarwin/VTK,SimVascular/VTK,candy7393/VTK,gram526/VTK,keithroe/vtkoptix,sumedhasingla/VTK,mspark93/VTK,mspark93/VTK,ashray/VTK-EVM,SimVascular/VTK,hendradarwin/VTK,demarle/VTK,ashray/VTK-EVM,hendradarwin/VTK,gram526/VTK,SimVascular/VTK,ashray/VTK-EVM,sankhesh/VTK,johnkit/vtk-dev,sumedhasingla/VTK,johnkit/vtk-dev,msmolens/VTK,gram526/VTK,johnkit/vtk-dev,johnkit/vtk-dev,msmolens/VTK,candy7393/VTK,gram526/VTK,mspark93/VTK,mspark93/VTK,jmerkow/VTK,candy7393/VTK,sumedhasingla/VTK,berendkleinhaneveld/VTK,ashray/VTK-EVM,SimVascular/VTK,jmerkow/VTK,msmolens/VTK,demarle/VTK,jmerkow/VTK,demarle/VTK,keithroe/vtkoptix,mspark93/VTK,gram526/VTK,SimVascular/VTK,hendradarwin/VTK,msmolens/VTK,hendradarwin/VTK,berendkleinhaneveld/VTK,demarle/VTK,demarle/VTK,SimVascular/VTK,jmerkow/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,mspark93/VTK