Allow access to the status of a gRPC stream call plus allowing to await the stream end

[EraYaN]

Feature Description

Access to the .status field for Stream requests.

Suggested Solution (optional)

A function that can be awaited that returns say a Promise

await stream.waitForStatus();

That returns the thing that normally is on Response.status

Already existing or connected issues / PRs (optional)

No response

[oleiade]

cc @olegbespalov