[WIP] Add example for Support Vector Machines

[bytesnake]

This PR adds a simple demonstration of SVMs. It uses a very simple iterative algorithm called Kernel-Adatron. For now there are some parts missing

• A real dataset (https://archive.ics.uci.edu/ml/datasets/Breast+Cancer+Wisconsin+%28Diagnostic%29)
• Evaluation with ROC curves
• Perhaps demonstrate SVM with a real quadratic solver (e.g. https://github.com/oxfordcontrol/osqp.rs)
• Perhaps demonstrate non-linear kernel functions