Support streaming responses

[ManuelLR]

Hi! First of all, thank you for the project.

I have been using it for a year and works perfectly, but I have a request to support streaming answer. I want like to give you more context.

I deployed it in Google Cloud-Run behind a Load Balancer that implements an IAP that redirects users to a login page. Due to Cloud-Run limits, the maximum response size is 32 MiB. https://cloud.google.com/run/quotas . This limit can be bypassed if the response is returned in a streaming way or using Transfer-Encoding: chunked.