[feature] Add save as example function to save last time response as example

**Is your feature request related to a problem? Please describe.**
No

**Describe the solution you'd like**
 Add save as example function to save last time response as example like postman

after user click send button, then request will get an response, if user can save the response as an example under the request it will be convenient, so no need to find it in history.
