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: 

"--K "  is not accepted on my build, perhaps choose -k or --kernelradius