Adding dpmpp_2s_ancestral as custom sampler node to enable its use with eta and s_noise when using custom sampling.

This should give time to test the standalone package before making it live.

Bert can accept up to 512 tokens so any prompt with more than 77 should
just be passed to it as is instead of splitting it up like CLIP.

Useful for testing what each text encoder does.

Fixes an issue where under certain conditions, the ComfyUI custom undo / redo functions would not run when intended to.

When trying to undo an action like deleting several nodes, instead the native browser undo runs - e.g. a textarea gets focus and the last typed text is undone.  Clicking outside the text area and typing again just keeps doing the same thing.

* Let tokenizers return weights to be stored in the saved checkpoint.

* Basic hunyuan dit implementation.

* Fix some resolutions not working.

* Support hydit checkpoint save.

* Init with right dtype.

* Switch to optimized attention in pooler.

* Fix black images on hunyuan dit.

* Supress frontend exception on unhandled message type

* nit

* Add timestamp to execution messages

* Add execution_end message

* Rename to execution_success

* Fix for isLittleEndian flag in parseExifData.

* Add break after reading first exif chunk in getWebpMetadata.

It is based on: https://arxiv.org/abs/2407.12173

Add "beta" to the list of schedulers and the BetaSamplingScheduler node.

* LoadAudio restores file value from workflow

* use onAfterGraphConfigured

* Don't use anonnymous function

Move other unet model_patches nodes to model_patches/unet section.

* support clip-vit-large-patch14-336

* support clip-vit-large-patch14-336