reedsSheppPath
fun reedsSheppPath(start: Vector2, startDirection: Vector2, end: Vector2, endDirection: Vector2, radius: Double): ReedsSheppPath(source)
The shortest Reeds-Shepp path from the pose (start, startDirection) to (end, endDirection): the shortest path for a car that drives forwards and in reverse and turns at most as sharply as a circle of radius. Equal poses give a path of length zero.