new Hera cluster spec for 4KV, 1 Indexer, and 1 N1QL node.
new Hera cluster spec for 4KV, 1 Indexer, and 1 N1QL node.

Change-Id: I3872efa094d7e156fad4fff9d177c49b4f8b9985
Reviewed-on: http://review.couchbase.org/57140
Reviewed-by: David Kao <a69e456d96b4758dfce29e77611874eb4f3d3720@yahoo.com>
Tested-by: David Kao <a69e456d96b4758dfce29e77611874eb4f3d3720@yahoo.com>

dkao-cb/perfrunner,couchbase/perfrunner,pavel-paulau/perfrunner,pavel-paulau/perfrunner,mikewied/perfrunner,couchbase/perfrunner,dkao-cb/perfrunner,EricACooper/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,couchbase/perfrunner,couchbase/perfrunner,couchbase/perfrunner,EricACooper/perfrunner,pavel-paulau/perfrunner,pavel-paulau/perfrunner,pavel-paulau/perfrunner,mikewied/perfrunner