COMP: Fix vtkSourceHash for VTK_USE_RPATH=OFF
COMP: Fix vtkSourceHash for VTK_USE_RPATH=OFF

This executable needs to run from the build tree and find the vtksys
shared library.  It does not need to be installed.  We can just always
use RPATH to help it find the shared library.

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