request: add option to remove the need to click "try it out"

[valentijnscholten]

My main usage of the swagger docs is to try things with the API. It would be nice if we could disable the "Try it out" button and just have the form enabled by default so you save some pointing and clicking before you can try out a request. Or multiple requests.

[valentijnscholten]

After typing this I realized this is handled by swagger ui. And it looks like currenty that has no option to do the above.