CRT/RTL Duplication

[Alex Ionescu]

Hi,

There are currently some files in ntoskrnl/rtl, lib/rtl, and /lib/crt 
which are duplicated. Stuff like vsprintf, sprintf, etc.
I think they should be massaged into lib/string so that all the modules 
can share the code instead of duplicating it THREE times(!).

Best regards,
Alex Ionescu