Binary Fixtures for SQL Server

There's a patch to allow fixtures to contain binary data. It's seems
it works on all dbs, except hasn't yet been tested on SQL Server.

Could using SQL Server apply it and check the tests? That way, they
can close the ticket.

Ticket is still in need of a quick SQL Server test... c'mon
SQLServers, don't hold back the train...

Fixes most of the binary tests (in SQLServer) but one still failing.
I'm investigating . . .


OK, I've fixed the failing test and attached a new patch to the
ticket. As far as I'm concerned it's now ready to go.