Asset compression support

[Amir Asghary]

• I'm submitting a ...
  [X] feature request

• Summary
  What do you think about adding support for asset-compression (images specifically)?

The total asset size for ADR can get out of hand over time.

We added a basic image compression system to our repo for ADRs using the sharp library with caching in mind. I can work on adding it to this library as well.

[Fengda Huang]

Yes, you can try to do it.