Add dcp bytes sent stats to reports.py
Add dcp bytes sent stats to reports.py

Change-Id: I6f66ae32a5838d910bced213e5047a982c9a1528
Reviewed-on: http://review.couchbase.org/46453
Reviewed-by: Venu Uppalapati <5c73d43f38c8de2bc4a2e4d15365e52f60b59dae@gmail.com>
Tested-by: Venu Uppalapati <5c73d43f38c8de2bc4a2e4d15365e52f60b59dae@gmail.com>

couchbase/cbmonitor,couchbase/cbmonitor