BUG: Update VTK to include fixes for VTK kits wrapping. Issue #3809

$ git shortlog 898e51a..0a186e2 --no-merges
Jean-Christophe Fillion-Robin (3):
      python: Update wrapping tool to support multiple hierarchy files
      python: Do not create a new hints file if a kit bundles only one module
      python: Update vtkWrapPython to add mutable object when building kit

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23629 3bd1e089-480b-0410-8dfb-8563597acbee