"All Sampling methods" option

[marcelo-mason]

An option to run all sampling methods with current configuration at the same time, have them output like a batch.

[protoplm]

I'm working on something that can do this in streamlit. I've got the concept laid out using cfg_scale and some outside mockup of loading them to a grid to get a comparison. Currently trying to expand it to the things I would find interesting to iterate through. So far I have:

-model.ckpt
-cfg_scale
-sampling steps
-sampler

I would like to display the output in a grid like this to the UI, and also place it into the folder along with the individual images.

[yourjelly]

A prompt matrix of cfg and sampling is something I would like to see for sure.

[protoplm]

Works well locally. The implementation isn't up to standards for the repo though, so it will take some time to have available.

Potentially useful for #178