[Feature Request] Add GFPGAN Please It's very useful

[Mshaoyang1991]

I saw you add UPScale,When I use it to zoom pic, There are always facial errors. I use the same process in my stable-diffusion-webui . I hit Facial Repair. Generated the perfect picture, hope you can add this feature. Thank you very much.

[dathide]

I would like it added as well.