BUG : correct calatkMetamorphosisCompareTest failing

- The Baseline files were expecting a Map of dimension 3 with scalar components, but since the commit 252e1ff7ad6a5d9f02a140c8403157cca02f8950, CalaTK is able to write the maps as deformations fields (in this case 2D Images with 2d vectors components)
- I updated the Baseline Files using the methods in CalaTK to do the conversion
BUG : correct calatkCompareWarping Test failing

- The Baseline files were expecting a Map of dimension 3 with scalar components, but since the commit 252e1ff7ad6a5d9f02a140c8403157cca02f8950, CalaTK is able to write the maps as deformations fields (in this case 2D Images with 2d vectors components)
- I updated the Baseline Files using the methods in CalaTK to do the conversion