Initial implementation of msvVTKEmbeddedProbeFilter.

Issue 21
Sample point coordinates. Pass through input arrays.

Also improve documentation.

Issue 21
Add test and data. Fix PrintSelf.

Issue 21
Minor: Remove needless comments.
Merge branch 'master' of https://github.com/MSV-Project/MSVTK into 21-msvVTKEmbeddedProbeFilter
Change CellId array to be vtkIdType.

Also improved comments and removed unused variables.
Issue #21.
Remove JB bug fix for vtkImageData.

Defer resolution of scalar bug to subsequent refactoring if/when merged
into VTK master, i.e. when a common base class for probe and embedded
probe exists.
Issue #21
Merge branch 'master' of https://github.com/MSV-Project/MSVTK into 21-msvVTKEmbeddedProbeFilter

Fix conflict in Libs/VTK/CMakeLists.txt
Merge branch 'master' of https://github.com/MSV-Project/MSVTK into 21-msvVTKEmbeddedProbeFilter
Add tutorial example for msvVTKEmbeddedProbeFilter.

Issue #21.
Minor change to formatting (Issue #21).
Merge pull request #23 from rchristie/21-msvVTKEmbeddedProbeFilter

21 msvVTKEmbeddedProbeFilter complete