for paid plans, allow granular (add on) higher limits on memory AND execution times

### What problem are you trying to solve?

Thumbnail generator for videos using ffmpeg where it takes in a video URL and uses a stream reader to output to cdn / web. Uses caching layer with kvm for video urls to cdn location.

### Describe the solution you'd like

Increase in cpu time / memory limit granularly for specific lambda

### Describe alternatives you've considered

infra outside of deno deploy using lambda approach with increased limits

### Documentation, Adoption, Migration Strategy

users on web uploads or view a video, a thumbnail will be auto generated or specific seek time on a video could have thumbnail preview on demand.