Adding extra magma lavel kvstore stats
Adding extra magma lavel kvstore stats

Change-Id: If394ea6205347ccb810dd7ba67916b490e875003
Reviewed-on: http://review.couchbase.org/116131
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Jyotsna <3cacb23db2a7c1408e4b8802d74c875d7724fa89@couchbase.com>
Reviewed-by: Korrigan Clark <11cf3ebdc6cba78053c91b2fd94cb21b47d0d02e@couchbase.com>

couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner