MB-32570: Add userdata tags to name and agent name in conn stats
MB-32570: Add userdata tags to name and agent name in conn stats

stats connections is part of cbcollect_info and reveals the
name of the users for the connections.

Change-Id: Icd1339e21778b302f4284ff96f7c463c020943d1
Reviewed-on: http://review.couchbase.org/103528
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine