Added implementations of fwscanf, swscanf, wscanf and sscanf.
Corrected the declaration of swscanf.
Added implementation of the l, h, L and w prefixes.
Added implementation of the c, C, s, S and n types.
Added -exe mode to generate a .spec.c for an exe without having to
provide a .spec.
Removed some no longer needed spec files.
Removed .dll extension in makefiles import specifications.
Convert all msvcrt locks over to use _lock and _unlock.
Explicitly make msvcrt compile with multithreaded option.
Fix flag handling in _sopen. Add W->A call for new _swopen.
Alexandre Julliard