Ensure that material mask is consistent with grid descriptor
Ensure that material mask is consistent with grid descriptor

Change-Id: Ia9f619a9c6cf68af74f21c548bade018bd0f703e

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