remove xt dep

AND OTHER DEPS

remove dependency on x-transformers

Support CVVP & fix for major bug in API

Update autoregressive to support type inputs

update api constants

implement clip-guided generation (and never use it...)

support latents into the diffusion decoder

Updates

updates for new autoregressive

new autoregressive check-in

integrate new autoregressive model and fix new diffusion bug

Integrate new diffusion network

Update API to have more expressive interface for controlling various generation knobs

Upgrade CLIP model and add eval_multiple

Add in ASR filtration

Modifications to support "v1.5"

Some renaming

Initial commit