VTK/VTK 6 Migration/Removal of CopyInformationToPipeline

Removal of CopyInformationToPipeline and CopyInformationFromPipeline from vtkDataObject and sub-classes

VTK 6 introduces a number of backwards-incompatible changes. The reasons behind these changes are described in more detail here. One of these changes is the removal of the VTK 4 compatibility layer. As part of this change, CopyInformationFromPipeline and CopyInformationToPipeline were removed from vtkDataObject and its subclasses. Copying of meta-data is now the responsibility of the executives.