CurveLineView
UIBezierPath 通过贝塞尔曲线画轨迹运动
参考 https://www.hangge.com/blog/cache/detail_1072.html
https://www.hangge.com/blog/cache/detail_1899.html
效果如图
https://github.com/cczufish/CurveLineView/blob/master/IMG_0216.jpg
https://github.com/cczufish/CurveLineView/blob/master/RPReplay_Final1599186694.MP4