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>

services/comfy/entrypoint.sh

@@ -0,0 +1,47 @@
+#!/bin/bash
+
+set -Eeuo pipefail
+
+declare -A MOUNTS
+
+
+mkdir -vp /data/config/comfy/
+
+# cache
+MOUNTS["/root/.cache"]=/data/.cache
+# ui specific
+MOUNTS["${ROOT}/models/checkpoints"]="/data/StableDiffusion"
+MOUNTS["${ROOT}/models/controlnet"]="/data/ControlNet"
+MOUNTS["${ROOT}/models/upscale_models/RealESRGAN"]="/data/RealESRGAN"
+MOUNTS["${ROOT}/models/upscale_models/GFPGAN"]="/data/GFPGAN"
+MOUNTS["${ROOT}/models/upscale_models/SwinIR"]="/data/SwinIR"
+MOUNTS["${ROOT}/models/vae"]="/data/VAE"
+
+# data
+MOUNTS["${ROOT}/models/loras"]="/data/Lora"
+MOUNTS["${ROOT}/models/embeddings"]="/data/embeddings"
+
+# config
+# TODO: I am not sure if this is final, maybe it should change in the future
+MOUNTS["${ROOT}/models/clip"]="/data/.cache/comfy/clip"
+MOUNTS["${ROOT}/models/clip_vision"]="/data/.cache/comfy/clip_vision"
+MOUNTS["${ROOT}/models/custom_nodes"]="/data/config/comfy/custom_nodes"
+MOUNTS["${ROOT}/models/style_models"]="/data/config/comfy/style_models"
+MOUNTS["${ROOT}/models/t2i_adapter"]="/data/config/comfy/t2i_adapter"
+
+# output
+MOUNTS["${ROOT}/output"]="/output/comfy"
+
+for to_path in "${!MOUNTS[@]}"; do
+  set -Eeuo pipefail
+  from_path="${MOUNTS[${to_path}]}"
+  rm -rf "${to_path}"
+  if [ ! -f "$from_path" ]; then
+    mkdir -vp "$from_path"
+  fi
+  mkdir -vp "$(dirname "${to_path}")"
+  ln -sT "${from_path}" "${to_path}"
+  echo Mounted $(basename "${from_path}")
+done
+
+exec "$@"