Add pavel-paulau as a repo in the perfrunner manifest

Change-Id: Ic35b8f438810f66cd945f5c99bcbd35df2f32037
Reviewed-on: http://review.couchbase.org/43208
Reviewed-by: Michael Wiederhold <mike@couchbase.com>
Tested-by: Michael Wiederhold <mike@couchbase.com>