Support AbortSignal to debounce & delay for improved cancellation

[jchoi-prestolabs]

The debounce function already supports cancellation through its return value, but its usability would improve if it also supported cancellation via AbortSignal, which is implemented in all major web browsers and JavaScript runtimes.

It would also be great to add a cancel feature to the delay function, and using AbortSignal here as well would be a good idea.

[Hanna922]

If you don't have any plans to work on this, may I take it on? Thank you.

[jchoi-prestolabs]

Sure, I have no plan to work for this now.

[raon0211]

It would help if we could make delay throw new Error('The operation was aborted') if it is aborted :) (Like in undici of Node.js)

[raon0211]

This issue was resolved by #45 and #52. Thanks for your contribution, @Hanna922 !