Response bytes stream for WASM

[SionoiS]

Hello!

Please advise. I'm not sure about returning an Option<Stream>, would it be fine to just unwrap and not return an option?

Also, I hope that adding this under the 'stream' feature was the right choice.

BTW this is the same as #1151

[paolobarbolini]

Please advise. I'm not sure about returning an Option, would it be fine to just unwrap and not return an option?

I don't think we'd want a different API from the non-wasm one. I'm not an official reviewer though

[seanmonstar]

I don't think we'd want a different API from the non-wasm one.

True, we want the API to be the same regardless of target.

[SionoiS]

It now return a stream like other APIs.

[SionoiS]

Deps have been streamlined (I think...)