Re: cryptui: Add a partial implementation of CryptUIWizImport.

[Juan Lang]

> If I'm right about typical usage of this function it will do the right
> thing more often than not, which is pretty good for a stub.

I don't think that's typical usage at all:  typical usage presents a
UI.  It's called from elsewhere in cryptui, so it's under the control
of the user how frequently this is used.  You add a cert to the root
store even when a UI is requested.  This is clearly incorrect.
--Juan