usp10: Implement digit substitution functions and add stubs

[Hans Leidekker]

On Saturday 29 July 2006 12:33, Albert Lee wrote:

> This adds implementations for ScriptRecordDigitSubstitution and
> ScriptApplyDigitSubstitution that should be correct.

Thanks for your patch Albert. I noticed that the changes to the spec file
are missing. It would also be nice if you could integrate your test in
Wine's testing framework and send that as a separate patch. Ask me if you
need help doing so.

 -Hans