激光雷达和单目相机外参标定代码，仅作为个人学习的记录。
参考2018IROS：《Automatic Extrinsic Calibration of a Camera and a 3D LiDAR using Line and Plane Correspondences》
Jerry-locker/lidar_monocam_calib
Automatic Extrinsic Calibration of a Camera and a 3D LiDAR using Line and Plane Correspondences
C++