2D minimal bounding box

Compute quickly the minimal bounding box of a set of 2D points

Compute the minimal bounding box of a set of 2D points, similarly to the "Minimal Bounding Rectangle" of John D'Errico.

However:
- The algorithm is fully vectorized (matlab implementation, no for loop). Thus it is better for big set of points
- It computes only the minimum area rectangle, not the minimum perimeter