Add data members TransparentRenderer and Interactive to allow for transparent renderers.
Add data members TransparentRenderer and Interactive to allow for transparent
renderers.

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