Add support for uniform and nonuniform in OpenFOAM reader.
Add support for uniform and nonuniform in OpenFOAM reader.

This fixes bug #12318.

Change-Id: I90e7ecb60dd3abdda33597f4a3e84a8be2a59683

ashray/VTK-EVM,mspark93/VTK,msmolens/VTK,keithroe/vtkoptix,SimVascular/VTK,demarle/VTK,SimVascular/VTK,spthaolt/VTK,keithroe/vtkoptix,SimVascular/VTK,candy7393/VTK,gram526/VTK,demarle/VTK,keithroe/vtkoptix,sumedhasingla/VTK,cjh1/VTK,aashish24/VTK-old,ashray/VTK-EVM,johnkit/vtk-dev,collects/VTK,cjh1/VTK,jmerkow/VTK,SimVascular/VTK,jmerkow/VTK,collects/VTK,aashish24/VTK-old,biddisco/VTK,msmolens/VTK,aashish24/VTK-old,cjh1/VTK,jmerkow/VTK,sankhesh/VTK,hendradarwin/VTK,msmolens/VTK,keithroe/vtkoptix,spthaolt/VTK,aashish24/VTK-old,hendradarwin/VTK,hendradarwin/VTK,johnkit/vtk-dev,keithroe/vtkoptix,candy7393/VTK,sankhesh/VTK,sankhesh/VTK,cjh1/VTK,sumedhasingla/VTK,demarle/VTK,candy7393/VTK,candy7393/VTK,mspark93/VTK,johnkit/vtk-dev,sumedhasingla/VTK,aashish24/VTK-old,sumedhasingla/VTK,sumedhasingla/VTK,gram526/VTK,jmerkow/VTK,hendradarwin/VTK,jmerkow/VTK,mspark93/VTK,spthaolt/VTK,SimVascular/VTK,gram526/VTK,candy7393/VTK,spthaolt/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,mspark93/VTK,demarle/VTK,cjh1/VTK,collects/VTK,berendkleinhaneveld/VTK,hendradarwin/VTK,hendradarwin/VTK,demarle/VTK,spthaolt/VTK,gram526/VTK,spthaolt/VTK,biddisco/VTK,candy7393/VTK,ashray/VTK-EVM,mspark93/VTK,aashish24/VTK-old,biddisco/VTK,ashray/VTK-EVM,berendkleinhaneveld/VTK,ashray/VTK-EVM,biddisco/VTK,mspark93/VTK,demarle/VTK,biddisco/VTK,msmolens/VTK,keithroe/vtkoptix,ashray/VTK-EVM,cjh1/VTK,collects/VTK,jmerkow/VTK,sankhesh/VTK,johnkit/vtk-dev,keithroe/vtkoptix,mspark93/VTK,sankhesh/VTK,sumedhasingla/VTK,sumedhasingla/VTK,sankhesh/VTK,jmerkow/VTK,johnkit/vtk-dev,keithroe/vtkoptix,johnkit/vtk-dev,demarle/VTK,berendkleinhaneveld/VTK,gram526/VTK,berendkleinhaneveld/VTK,msmolens/VTK,jmerkow/VTK,spthaolt/VTK,biddisco/VTK,SimVascular/VTK,hendradarwin/VTK,gram526/VTK,msmolens/VTK,candy7393/VTK,sankhesh/VTK,demarle/VTK,sumedhasingla/VTK,biddisco/VTK,gram526/VTK,berendkleinhaneveld/VTK,mspark93/VTK,msmolens/VTK,ashray/VTK-EVM,sankhesh/VTK,SimVascular/VTK,johnkit/vtk-dev,collects/VTK,berendkleinhaneveld/VTK,msmolens/VTK,SimVascular/VTK,gram526/VTK,candy7393/VTK,collects/VTK