add fts_memory_quota to audit descriptor
add fts_memory_quota to audit descriptor

Change-Id: Ib9d7d1c9e9ac93ab38fd527bf2eb7ba4f20f3704
Reviewed-on: http://review.couchbase.org/86990
Tested-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>
Well-Formed: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>

membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server,membase/ns_server