Fast farthest point sampling(fps) for planar data

Fast farthest point sampling(fps) for planar data (2D data); ~40x faster than vanilla fps (in some experimental setting) Fast online fps for planar data (2D data); ~80x faster than vanilla fps (in some experimental setting)

Wanted packages:

- time
- pytorch
- functools
- warnings
- math
- matplotlib

Run demo:

python3 fps.py