1 - add control point space - delete control points https://turbowarp.org/560672875 white points indicate endpoints of each approximated segment
piecewise linear approximation of bézier curves src : https://hcklbrrfnn.wordpress.com/2012/08/20/piecewise-linear-approximation-of-bezier-curves/ https://github.com/ppy/osu-framework/blob/master/osu.Framework/Utils/PathApproximator.cs
