CBQE-2217: add more index tests for tuq

Change-Id: I801bbe47f3cf1ac08728c9aac29a19b54af4eac7
Reviewed-on: http://review.couchbase.org/36404
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>