CBAS data path not included in ns_server.stats.log

Within the ns_server.stats.log file generated by cbcollect_info we get the node_storage_conf which looks like the following:

{node_storage_conf,

          [{db_path,"/opt/couchbase/var/lib/couchbase/data"},

           {index_path,"/opt/couchbase/var/lib/couchbase/data"}]},

However, this does not include the directory used by the Analytics Service, making it harder to tell whether a custom directory is being used. We need to add the directory being used by Analytics to this to maintain consistency and aid supportability.

Not sure whether this is an ns_server or analytics issue, so adding both components for now.