Could you provide the trained models

Hi, all,

Could you provide the trained models mentioned [here](https://github.com/Jittor/PointCloudLib#%E5%B7%B2%E7%BB%8F%E5%AE%9E%E7%8E%B0%E7%9A%84%E6%A8%A1%E5%9E%8B)? 

Thanks~