Function visioncortex::reduce::simplify_douglas_peucker

pub fn simplify_douglas_peucker<T>(
    points: &[Point2<T>], 
    sq_tolerance: f64
) -> Vec<Point2<T>> where
    T: Add<Output = T> + Sub<Output = T> + Mul<Output = T> + PartialEq + Copy + Into<f64>, 

simplification using Ramer-Douglas-Peucker algorithm