Attached is a randomized tester for consoled. It's a patch against

Attached is a randomized tester for consoled.  It's a patch against
xen-unstable.hg but it doesn't add itself to any of the Makefiles but
just as a subdirectory of consoled.  There's a README in the directory
that should be read otherwise you won't be able to do anything useful
with it :-)

Right now, we can get pretty far before seeing data corruption.
Previously, we'd see it almost immediately (after ~600 bytes, which is
the max the control channel can hold before filling up).

It's actual general enough that it could be also used to test network
traffic corruption but there are certainly better tools for that.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>