function getPointAtLength(pathInput, distance) {
  return pathLengthFactory(pathInput, distance).point;
}
Returns [x,y] coordinates of a point at a given length of a shape.

@param {string | SVGPath.pathArray} pathInput the `pathArray` to look into
@param {number} distance the length of the shape to look at
@returns {{x: number, y: number}} the requested {x, y} point coordinates