CBQE-1531: add datetime cases tuq

Change-Id: I7766fee6f182ba6faae4e6b8e429d062313b2c5a
Reviewed-on: http://review.couchbase.org/29736
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
Tested-by: Ketaki Gangal <ketakigangal@gmail.com>