ENH: Added vtkSetNGet macro
ENH: Added vtkSetNGet macro

Added a vtkSetNGet macro which combines the
functionality of the vtkGetMacro and vtkSetMacro
in a single macro. In addition, it alleviates
the requirement to inherit from vtkObject in order
to use this macro

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