Function hermite(pt1: number, m1: number, m2: number, pt2: number): (t: number) => number A second order function returning an evaluator for the given 1D Hermite curve param pt1 - First pointparam m1 - First control point (tangent)param m2 - Second control point (tangent)param pt2 - Second pointreturns A function which gives the value on the 1D Hermite curve at t