added cookie property in api body

[TheNoumanDev]

Ticket: #1649

Example EDL:

getProducts:
    url: https://postman-echo.com/post
    method: POST
    manageCookies: true  # default is false
    onResponse: |
      console.log(response.body);
      console.log(response.headers['set-cookie']); // just to confirm
      console.log(response.cookies); 

[kmahmood74]

@TheNoumanDev I thought this was done, why is this PR still open?

[TheNoumanDev]

@TheNoumanDev I thought this was done, why is this PR still open?

Was waiting for a review from Vu as you said Vu has better understanding of API understanding, But yeah will update sink,docs and schema and merge it.