将hdf5转换为semanticKITTI，你也可以将别的点云类型转换为KITTI，只要小小改动代码即可。
Transfer hdf5 to semanticKITTI. You can also transfer other type of point clouds to KITTI by change a little code.
需要修改的地方: 1、在代码顶部将python路径改为你的python路径。 2、修改PATH, FILE_PATH, LABEL_PATH。
Places you need to change: 1.change your python path on the top of the file. 2.change PATH, FILE_PATH, LABEL_PATH