Updating psim to compare two images
Corrected particle simulator

1) without using rigid alignment
2) removed armadillo library (use vnl* instead)
3) removed itkImageIO
4) corrected to use DIMENSIONS definition instead of DIMENSION3
5) corrected bug for TransformY2Z
6) Dimension related bug
Kappa image and Trace visualization

1) Kappa range test
2) Better visualization including orientation ?