CBIDXT-94 Improvised test cases for N1QL evaluation.

Example json documents for unit-testing and benchmarking.

Change-Id: I2bd67e96a1abbf2411be9d3b0111a7fedd59d6f2
Reviewed-on: http://review.couchbase.org/39350
Reviewed-by: John Liang <johliang00@gmail.com>
Reviewed-by: Pratap Chakravarthy <prataprc@couchbase.com>
Tested-by: Pratap Chakravarthy <prataprc@couchbase.com>