fix a bug with repaint, thanks to @flavioschneider

keep it simple for researchers to build off of

fix repaint to actually renoise and resample

fix repaint to actually renoise and resample

fix repaint to actually renoise and resample

bye bye discrete time gaussian diffusion

add a simple checkpointing system for single node use

fix fp16 + encode_text for elucidatedimagen, thanks to @animebing

add ability to get a learning rate for each unet, also fix edge case …

…where cosine lr scheduler not needed, but warmup is still there