schannel: Implement SpUserModeInitialize

[Yuval Fledel]

On 24/04/07, James Hawkins wrote:
> Can you resend the patch with the value #defined?

Sure, the last thing I wish to do is ignore review. It should be in
your mailbox now.

You actually implicitly found a bug in my tests, which also wrongly
made me drop an older version of the implementation just to follow the
wrong test.

> James Hawkins

-- 
Yuval Fledel