* in progress. camera_indices broken
* faster dataloader. starting on pixel sampler logic
* imagesampler and pixelsampler
* lint and black
* continuing merge
* pytest working
* fixed docs
* docs
* minor changes
* code to process the friends data. need to add masking
* code to process the friends data. need to add masking
* black
* trying to fix black
* black fixed
* updating black version