Vectorizing `amass_to_pose` in `raw_pose_processing`

[jojo978]

Hello,

I think amass_to_pose can be vectorized (not iterating a single pose at a time but all poses in a sequence (a npz file) at a single time.).

I tried this and it gave about >10x boost in speed. (since my graphics card GTX 1660 Ti gave me a CUDA memory allocation error, I calculated in cpu though.).

If it's not a resolved issue, I may issue a PR.

Thanks,

Young

[sridharkamath]

Hi I am facing a similar issue while processing (amass_to_pose) KIT dataset:

Can you please help out

[sridharkamath]

My GPU is 2080 Ti