CBQE-0: added test_cfg file for KV_Windows_XDCR system test

Change-Id: I7781dd6ae160fdc3166bf06eef5745776a10f846
Reviewed-on: http://review.couchbase.org/41360
Reviewed-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>
Tested-by: Sangharsh Agarwal <sangharsh.agarwal@globallogic.com>