Feature: return file as response

[vkagamlyk]

This feature consists of 2 parts:

1. @produces decorator to set content type of response. Supported only 1 value.
   Usage example: @produces('text/html; charset=utf-8')
2. Return file as response.
   Usage example:
   const result = new FileResult();
   result.data = 'Readable stream or any type supported by response.send()';

[egandro]

Oh again here. This is also on my Todo List.

@vkagamlyk is it ok for you to take your code and fix it for the current release?

[dgreene1]

I think @vkagamlyk is no longer interested in this and someone else picked it up in #228 so we’ll track it there