Support for Pillow (Python image library)

[sbdchd]

I use this to munge some upload images into background thumbnails as part of a web service

[zyd16888]

I need this too

[iann838]

Would appreciate image manipulation library, OpenCV is too heavy, so would like to at least have Pillow, which is already good enough for most lightweight usecases that fits the context of deployment at Cloudflare Workers