Samples attention

[rockerBOO]

• Flash attention is a flag instead of using the dtype. Disabled for the moment
• Sample images are now rendering but they produce only noise. Might help with debugging the model if they were actually working.
• Fixed load from disk cache was not in the new order
• Documented a lot of the functions

Attention processor with SDPA should be working on torch 2.6 but produced NaN on a lower torch when I was testing things. Maybe some torch version will get it working.

Sample images come in through CFG as 2 of the input latent and the positive and negative prompts.
[noise] * 2 paired with [postive_prompt, negative_prompt]

I rebased with SD3 i believe for the extra commits here.

Going to poke a little bit at fixing the sample images as that loop should solve some other issues. Then I would want to move to fixing batch size but should be fairly close with batch size.