Add support for automatic replies ala VsCode

[zadjii-msft]

https://code.visualstudio.com/updates/v1_64#_automatic-replies

Something like their syntax:

"terminal.integrated.autoReplies": {
  "[Oh My Zsh] Would you like to check for updates? [Y/n]": "Y\r",
  "Terminate batch job (Y/N)": null
}

Might even be able to close out #217 with this 👀

There'd be obvious edge cases where a string is split over many writes, but that might be acceptable.

The perf hit would be the thing I'd be most worried about. We'd need to have a very clever way of not impacting throughput too much.

[zadjii-msft]

brain blast: it's gotta accept capture groups and the ability to reference them in the reply.

Consider:

fatal: The current branch dev/migrie/fhl/menu-complete-prototype has no upstream branch.
To push the current branch and set the remote as upstream, use

    git push --set-upstream origin dev/migrie/fhl/menu-complete-prototype

match on

"autoReplies": {
    "    git push --set-upstream origin (.*)": "git push --set-upstream origin ${match[0]}"
}

to automatically output

git push --set-upstream origin dev/migrie/fhl/menu-complete-prototype

<pseudo-spec>

[zadjii-msft]

I'm just tracking this in /dup #5916 at this point.

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists on this Issue Tracker. This specific instance is being closed in favor of tracking the concern over on the referenced thread. Thanks for your report!