CBQE-984: add compaction test

and also deleted test_start_compaction: all views had 1 map fn, now it is changed by test_multiply_compaction,cycles-num=1,ddocs_num=1 with diff map fns

Change-Id: Ic93a00a7169de0be858480b88a703c935e6e99cb
Reviewed-on: http://review.couchbase.org/24093
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Deepkaran Salooja <deepkaran.salooja@globallogic.com>