Add wrapResolved to be a faster version of wrapPromise

[platypii]

This is a fix for the issue with arrayDataFrame flickering.

The problem was that it's using wrapPromise. wrapPromise effectively uses Promise.resolved(value).then() which means that data has to wait for a microtask to be scheduled on the next event loop tick.

I added a new function wrapResolved which expects a concrete value, and returns a WrappedPromise but without adding a callback delay. This makes arrayDataFrame and anything using it faster. Without this change, scrolling would flicker unless wrapped in a rowCache (which really shouldn't be necessary for an array-backed dataframe).

I also changed the signature of wrapPromise from Promise<T> | T to just Promise<T>. This force downstream users to make a choice between wrapPromise and wrapResolved. Users should always choose the faster one, if they can. Should be considered a breaking api change (0.14.0).

[severo]

Good idea.

An alternative would have been to keep the conditional (if (!(promise instanceof Promise)) {) in wrapPromise and just synchronously set .resolve = value and return.

But I like the clarity of one function doing one thing, so I prefer the code now.