quadToCubic

inline fun <T> quadToCubic(    x0: Double,     y0: Double,     xc: Double,     yc: Double,     x1: Double,     y1: Double,     bezier: (qx0: Double, qy0: Double, qx1: Double, qy1: Double, qx2: Double, qy2: Double, qx3: Double, qy3: Double) -> T): T