cookie manipulation issues

I have a situation where I want to extract the cookies from a response, parse them, and then use them as input to a separate response. Trying to use `hackney_cookie:parse_cookie` and `hackney_cookie:setcookie` resulted in some inconsistencies:

* `parse_cookie` parses all parameters while `setcookie` only accepts a subset of options and drops the rest
* `parse_cookie` returns binary keys while `setcookie` expects atoms
* `parse_cookie` returns Max-Age as a string, while `setcookie` expects an integer