Add image restoration to the pipeline

[jhj0517]

Since the image quality degrades during face cropping and merging, add image restoration to the pipeline.

This is the latest way to restore the image:

• https://github.com/instantX-research/InstantIR

+) It's good but too heavy for restoration. Needs atleast 24 GB VRAM. - https://github.com/instantX-research/InstantIR/issues/7#issuecomment-246180869

[jhj0517]

I believe Real Esragn is the way to go if you want less than 8GB VRAM.

• https://github.com/ai-forever/Real-ESRGAN/tree/main