CBQE-1531: start query tool tests implementation

Change-Id: Ie4b9e9f6b2e234d85fdf3b48f99778277caf6608
Reviewed-on: http://review.couchbase.org/28971
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>