add temp test with reduced item count to workaround windows xdcr memory regression

Change-Id: I68434143f17b1dd9fb05b700c5d6c33523c4a8da
Reviewed-on: http://review.couchbase.org/41943
Reviewed-by: Venu Uppalapati <venumahesh@gmail.com>
Tested-by: Venu Uppalapati <venumahesh@gmail.com>