ENH: Add WholeExtent and PieceExtent information
ENH: Add WholeExtent and PieceExtent information

Added functionality in the partitioner to store the
WholeExtent and PieceExtent information as metadata
in the vtkInformation of the vtkMultiBlockDataSet and
vtkInformation for each block respectively.

Change-Id: Ib3eacb92cdf5864739857ca896d254534ee10fd7

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