Feature: metadata/status

[TorbjornHoltmon]

We use cachified in many different contexts in our apps, and we love it.
And we would really love to have the possibility to see cache status from a cache result, in some way or another.

const cachifiedResult = await cachifiedWithMetadata({
  key: `user-${userId}`,
  cache: ourCache,
  async getFreshValue() {
    ...
  },
  ttl: 300_000,
});

console.log(cachifiedResult.status) // "HIT", "MISS" or "REVALIDATING"
console.log(cachifiedResult.value) // Cached, or fresh value

[kentcdodds]

That sounds like a useful thing to me. I'm open to anyone making a PR for this.