rplidar_sdk release v1.12.0.zip

Slamtec RPLIDAR(https://www.slamtec.com/lidar/a3) series is a set of high-performance and low-cost LIDAR(https://en.wikipedia.org/wiki/Lidar) sensors, which is the perfect sensor of 2D SLAM, 3D reconstruction, multi-touch, and safety applications. This is the public SDK of RPLIDAR products in C++,