Gif and WebP support

[Jonatthu]

Library

I am not sure

Summary

Here is a gist that I found on the internet,

Could we make it part of this config plugins repo?

https://gist.github.com/Hirbod/07c6641970c9406ff35a7271dda1f01c

Any existing examples?

https://gist.github.com/Hirbod/07c6641970c9406ff35a7271dda1f01c