DRILL-6942: Provide ability to sort list of profiles on Drill Web UI
This provides an option to order the list of query profiles based on any of the displayed fields, including total duration. This way, a user can easily identify long running queries.
In addition, the number of profiles listed per page for both, completed and running list of queries, has been made configurable with the parameter: `drill.exec.http.profiles_per_page` (default is 10,25,50,100)
closes #1594
