Add sampling

[kingoflolz]

Training model rn to see if its even slightly sensible

[sdtblck]

let's get it actually working before we merge into main haha

[leogao2]

Requirements is missing imageio, tensorflow_datasets, transformers, cloud-tpu-client

[sdtblck]

This should be ready to merge now, but i'm just going to train some small models to make sure everything's working.

[CLAassistant]

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0 out of 6 committers have signed the CLA.

:x: sid
:x: kingoflolz
:x: leogao2
:x: ConnorJL
:x: lucidrains
:x: sdtblck

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