CBQE-2182: added steps to collect data files and run RevId Verification
for Xdcr tests

Change-Id: Ic456b03ed5013c8d30a6114663f7ddf021d9e533
Reviewed-on: http://review.couchbase.org/35670
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>