kernel32:add ReadFileScatter

[Dan Kegel]

Hey Louis,
Focht is using a pseudonym, and I believe it's Wine policy to
not accept patches without real names.
His patches should be used as guides only,
and should not be reposted to wine-patches,
until such time as he decloaks.  If he doesn't
want to decloak, I think we can't use his patches.

I rather wish he would avoid attach patches to
bugs, as it tempts people into submitting them
as you have done, which is a waste of effort given
Wine's policy.  But I greatly value his ability to
describe where and how Wine is wrong.
- Dan