Refactoring II tools

Some refactoring to use new tools from II instead of the deprecated ones.

- Adding computation of first and second principal curvatures in 3dCurvatureViewer and 3dCurvatureViewerNoise.
- Use new II estimators in 2dLocalEstimators, 3dLocalEstimators and 3dCurvatureViewerNoise.

:octocat: 

I know that it not directly related to this PR but it could be nice to optionally include the coordinates of the contours just by an option in computeLocalEstimations() and by an iterator in gridCurve... 
But if you have no time to do it we can add it later..