Always add named and positional parameters fields in completed requests

With the new logic system:completed_requests and completedRequests logs would now display named, positional parameters without controls request parameter being set for qualified requests.

• For CompletedRequests logging/ caching in systems keyspace.
  Adding named & positional parameter fields doesn't require controls request parameter to be set.

• For ActiveRequests the behaviour is as before, i.e., the user would have to set controls to true.

• The same is true for the response from /query/service to display named & positional parameters, the user would have to set the controls request parameter to true just like before.

• for /admin/completed_requests user has to set profiling request parameter to see named/positional parameters (just like before)

For example:

 curl -u  Administrator:password http://127.0.0.1:9499/query/service -d 'statement=SELECT $headshot, $dead&pretty=true&$headshot=1&$dead=2' 

From system:completed_requests

{

        "completed_requests": {

            ...

            "namedArgs": {

                "$dead": 2,

                "$headshot": 1

            },

            ...

            "statement": "SELECT $headshot, $dead",

}