Correct ComputeScalarRange when dealing with multiple components.
Correct ComputeScalarRange when dealing with multiple components.

Change-Id: I4e441300a189d9f0c7f41c26378b8c05429d54b1

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