consider get the models from hugging face

[leonelhs]

Hello, I'm working on a front end for Real-ESRGAN and GFPGAN. For my fork of this project I have added a method to get the models from Hugging Face. That method don't touch any source related to the core, it only touchs the command line utility inference_realesrgan.py.

I would like that Real-ESRGAN had an official repo at hugginface, if you whish too, you can clone this repo https://huggingface.co/leonelhs/gfpgan and chage the REPO_ID at inference_realesrgan.py to your own REPO_ID and make it official.