Support for ComfyUI (#384)

As discussed in Discussion
[#367](https://github.com/AbdBarho/stable-diffusion-webui-docker/discussions/367),
this adds support for the newer ComfyUI. I forked the fork that would
already add this but the maintainer of that fork hasn't implemented the
changes needed to properly get the output function working, which I did.
I believe everything is functional though I have not tested every single
node.

I changed the table format for the README and a few other minor things
for aesthetic reasons but if you want me to revert those, I will.

---------

Co-authored-by: Jonathan Kovacs <jkovacs-dev@users.noreply.github.com>
Co-authored-by: AbdBarho <ka70911@gmail.com>

README.md

@@ -34,6 +34,14 @@ This repository provides multiple UIs for you to play around with stable diffusi
 | ---------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------- |
 | ![](https://user-images.githubusercontent.com/24505302/189541298-f902b021-a1eb-4e4b-b2eb-b6a696a8ec80.jpg) | ![](https://user-images.githubusercontent.com/24505302/189541295-7d7f2162-2189-4e0a-abbd-703f4779e1cd.jpg) | ![](https://user-images.githubusercontent.com/24505302/189541294-aa7f7735-a973-4e17-ada0-1fe3acbb1772.jpg) |
 
+### [ComfyUI](https://github.com/comfyanonymous/ComfyUI)
+
+[Full feature list here](https://github.com/comfyanonymous/ComfyUI#features), Screenshot:
+
+| Workflow                                                                         |
+| -------------------------------------------------------------------------------- |
+| ![](https://github.com/comfyanonymous/ComfyUI/raw/master/comfyui_screenshot.png) |
+
 ## Contributing
 
 Contributions are welcome! **Create a discussion first of what the problem is and what you want to contribute (before you implement anything)**
@@ -51,5 +59,6 @@ Special thanks to everyone behind these awesome projects, without them, none of
 - [AUTOMATIC1111/stable-diffusion-webui](https://github.com/AUTOMATIC1111/stable-diffusion-webui)
 - [InvokeAI](https://github.com/invoke-ai/InvokeAI)
 - [Sygil-webui](https://github.com/Sygil-Dev/sygil-webui)
+- [ComfyUI](https://github.com/comfyanonymous/ComfyUI)
 - [CompVis/stable-diffusion](https://github.com/CompVis/stable-diffusion)
 - and many many more.