features of this implementation are:
- Can open storages created in Windows.
- Can create new storages that the windows libraries can
read.
- Provides all the functionality to create/open/remove and
rename streams and storages inside the main storage object.
- include/winuser.h - interface relevant to user32.spec
- include/wine/winuser16.h - the old 16 bit interface (internal use)
- include/winbase.h - some minor updates to keep things coherent.
- Lot of other files made to include wine/winuser16.h, which is no
longer included from windows.h