DOC: Suggest MeshFileReader instead VTKPolyDataReader.

The MeshFileReader has better VTK format support and also supports other
formats.

Change-Id: Ib21ab4892c49c5396687fd0390599807ccace33e
ENH: Adding GetFEMFilter method to PhysicsBasedNonRidgidRegistrationMethod.

Change-Id: I112d5010eae6675f20c6a5a4804c6aa9b71fb00c
DOC: Add itkSetGetDecoratedInputMacro definition for Doxygen.

Needed for ImageFileReader.

Change-Id: If0ca8bf3b6ffd171e7aea9b3d09bdcc5075d4ca9
Merge topic 'polydata'

78aa20a9 DOC: Suggest MeshFileReader instead VTKPolyDataReader.
Merge topic 'set-get-doxygen'

a883a628 DOC: Add itkSetGetDecoratedInputMacro definition for Doxygen.
Merge topic 'A2D2-PBNRR'

a93da142 ENH: Adding GetFEMFilter method to PhysicsBasedNonRidgidRegistrationMethod.