Polyfill process.stdin and process.stdout

[franciscop]

What is the problem this feature will solve?

Allow for people to use process.stdin and process.stdout as expected. Allow those to work with libraries that require them. In my specific case, allow spinnies to work spinnies => readline => process.stdin/out.

This is a follow-up/prework needed to fix #311

What is the feature you are proposing to solve the problem?

Polyfill Bun.stdin and Bun.stdout into process.stdin and process.stdout

What alternatives have you considered?

Create the polyfill myself, however I'm stuck here:

console.log(Bun.stdin.stream(), Bun.stdout.stream());
// ReadableStream { } ReadableStream { }

How do I get the "WritableStream" from Bun.stdout?

[xhyrom]

Duplicate of #894

[xhyrom]

Closed as not planned because this is duplicate (no because this is not planned), follow original issue for more informations.