Run the Training and Testing on CenterPoint & Do research on Mmdetection3D

Solved the problems that the Spconv cannot be compiled:

Training the total dataset(nuScenes, 442.8GB) on RTX3090Ti cost me about 4 days.

Achieved the test results:

The result trained on my computer is almost similiar to the official result. Next, I will look for some advanced methods to modify the CenterPoint.

Recently, I was learning mmdetection3D.