Support streams as input

[yonahforst]

Could you support a readable stream as input? Looking at src/index.ts it seems like it would be trivial, since you're already loading the local file as a stream. I would happily submit a PR but TypeScript is still a mystery to me 😅

Having another look at the code, it looks like you need to close the stream and then reopen it. Not sure how you could do that if we pass in the stream as an argument. perhaps it's not necessary to close it?

[Maxou44]

I made a PR to support URLs, it's the proof you can easily bind another ReadStream as params, with some edits it could works with any stream 😉

#7