Add Python LinePlot Charts Test
Add Python LinePlot Charts Test

Largely a clone of the Cxx version save that the data arrays must
be manipulated directly since the vtkVariant based methods on vtkTable
aren't available to Python.

cjh1/VTK,spthaolt/VTK,hendradarwin/VTK,mspark93/VTK,johnkit/vtk-dev,candy7393/VTK,ashray/VTK-EVM,mspark93/VTK,aashish24/VTK-old,demarle/VTK,demarle/VTK,naucoin/VTKSlicerWidgets,ashray/VTK-EVM,berendkleinhaneveld/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,naucoin/VTKSlicerWidgets,ashray/VTK-EVM,berendkleinhaneveld/VTK,biddisco/VTK,gram526/VTK,mspark93/VTK,sumedhasingla/VTK,sankhesh/VTK,mspark93/VTK,jmerkow/VTK,arnaudgelas/VTK,keithroe/vtkoptix,johnkit/vtk-dev,msmolens/VTK,daviddoria/PointGraphsPhase1,spthaolt/VTK,SimVascular/VTK,hendradarwin/VTK,arnaudgelas/VTK,aashish24/VTK-old,biddisco/VTK,candy7393/VTK,aashish24/VTK-old,collects/VTK,demarle/VTK,arnaudgelas/VTK,biddisco/VTK,candy7393/VTK,naucoin/VTKSlicerWidgets,SimVascular/VTK,sankhesh/VTK,hendradarwin/VTK,johnkit/vtk-dev,johnkit/vtk-dev,naucoin/VTKSlicerWidgets,spthaolt/VTK,sumedhasingla/VTK,jmerkow/VTK,demarle/VTK,SimVascular/VTK,jmerkow/VTK,candy7393/VTK,msmolens/VTK,berendkleinhaneveld/VTK,candy7393/VTK,keithroe/vtkoptix,SimVascular/VTK,sankhesh/VTK,aashish24/VTK-old,msmolens/VTK,ashray/VTK-EVM,sankhesh/VTK,demarle/VTK,hendradarwin/VTK,msmolens/VTK,gram526/VTK,spthaolt/VTK,msmolens/VTK,sumedhasingla/VTK,collects/VTK,jmerkow/VTK,spthaolt/VTK,jeffbaumes/jeffbaumes-vtk,collects/VTK,jeffbaumes/jeffbaumes-vtk,collects/VTK,mspark93/VTK,ashray/VTK-EVM,collects/VTK,demarle/VTK,sankhesh/VTK,gram526/VTK,demarle/VTK,mspark93/VTK,sankhesh/VTK,gram526/VTK,sankhesh/VTK,jeffbaumes/jeffbaumes-vtk,hendradarwin/VTK,spthaolt/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,mspark93/VTK,keithroe/vtkoptix,mspark93/VTK,cjh1/VTK,cjh1/VTK,arnaudgelas/VTK,jmerkow/VTK,cjh1/VTK,biddisco/VTK,ashray/VTK-EVM,aashish24/VTK-old,arnaudgelas/VTK,keithroe/vtkoptix,jeffbaumes/jeffbaumes-vtk,demarle/VTK,daviddoria/PointGraphsPhase1,daviddoria/PointGraphsPhase1,biddisco/VTK,cjh1/VTK,gram526/VTK,berendkleinhaneveld/VTK,berendkleinhaneveld/VTK,sumedhasingla/VTK,gram526/VTK,hendradarwin/VTK,ashray/VTK-EVM,ashray/VTK-EVM,jmerkow/VTK,candy7393/VTK,sumedhasingla/VTK,sumedhasingla/VTK,aashish24/VTK-old,keithroe/vtkoptix,jeffbaumes/jeffbaumes-vtk,arnaudgelas/VTK,biddisco/VTK,daviddoria/PointGraphsPhase1,SimVascular/VTK,johnkit/vtk-dev,gram526/VTK,sumedhasingla/VTK,msmolens/VTK,msmolens/VTK,SimVascular/VTK,jeffbaumes/jeffbaumes-vtk,spthaolt/VTK,sankhesh/VTK,johnkit/vtk-dev,berendkleinhaneveld/VTK,collects/VTK,candy7393/VTK,keithroe/vtkoptix,gram526/VTK,candy7393/VTK,SimVascular/VTK,keithroe/vtkoptix,naucoin/VTKSlicerWidgets,naucoin/VTKSlicerWidgets,sumedhasingla/VTK,daviddoria/PointGraphsPhase1,biddisco/VTK,hendradarwin/VTK,msmolens/VTK,johnkit/vtk-dev,SimVascular/VTK,jmerkow/VTK,cjh1/VTK