Add AbortSignal to @inquirer/core.

[mshima]

Allow to programmatically cancel the prompt.

Timeout example.

await input(
  { message: 'Enter your name' },
  { signal: AbortSignal.timeout(5000) },
});

In yeoman-environment conflicter, conflict check and commit is done in background while the conflict resolution question is prompted. AbortSignal support will make easy to cancel the prompt.

[SBoudrias]

Ah, I think that's a great idea.

I'm happy to review a PR, or I'll get to it in a few weeks.