v2 (#108)

### Update versions
- auto:
3f417566b0

### Breaking changes:
* renamed `automatic-1111` service to `auto`
* the `cache` folder is now deprecated, replaced with `data` (see
migration guide below)
* `embeddings` folder has been moved to `data/embeddings`
* use GFPGAN 1.4

### Migration Guide

Note: in theory, running the command 
```
docker compose --profile download up --build
```
is all you need to use the new version, however, this means you will
also have to download everything again. A new script is available under
`scripts/migratev1tov2.sh` that will copy models to the new structure
and should get you most of the way, run
```bash
./scripts/migratev1tov2.sh
```
or you can manually inspect the script and copy the files

After that, run
```
docker compose --profile download up --build
```
to validate everything.

services/download/links.txt

@@ -1,12 +1,12 @@
 https://www.googleapis.com/storage/v1/b/aai-blog-files/o/sd-v1-4.ckpt?alt=media
-  out=model.ckpt
-https://github.com/TencentARC/GFPGAN/releases/download/v1.3.0/GFPGANv1.3.pth
-  out=GFPGANv1.3.pth
+  out=StableDiffusion/model.ckpt
+https://github.com/TencentARC/GFPGAN/releases/download/v1.3.4/GFPGANv1.4.pth
+  out=GFPGAN/GFPGANv1.4.pth
 https://github.com/xinntao/Real-ESRGAN/releases/download/v0.1.0/RealESRGAN_x4plus.pth
-  out=RealESRGAN_x4plus.pth
+  out=RealESRGAN/RealESRGAN_x4plus.pth
 https://github.com/xinntao/Real-ESRGAN/releases/download/v0.2.2.4/RealESRGAN_x4plus_anime_6B.pth
-  out=RealESRGAN_x4plus_anime_6B.pth
+  out=RealESRGAN/RealESRGAN_x4plus_anime_6B.pth
 https://heibox.uni-heidelberg.de/f/31a76b13ea27482981b4/?dl=1
-  out=LDSR.yaml
+  out=LDSR/project.yaml
 https://heibox.uni-heidelberg.de/f/578df07c8fc04ffbadf3/?dl=1
-  out=LDSR.ckpt
+  out=LDSR/model.ckpt