ENH: Importing Laplacian Deformation for QuadEdgeMesh

Code from IJ paper Laplacian Mesh Deformation

  http://www.insight-journal.org/browse/publication/890
  http://hdl.handle.net/10380/3410

Change-Id: I170de75843605e51f79f59db04d5f3c6db24f111
Merge topic 'LaplacianDeformation'

6c86b9f1 ENH: Importing Laplacian Deformation for QuadEdgeMesh