file: now provides a much more efficient alternative to file_enum that
does not sort all files (this was a problem for check_if_oal_dll which
was scanning the entire system32 dir)
- use the same DirEnt struct for file and VFS due to clever name pointer
trick.
- wposix: avoid malloc for most opendir() and fix mmap() bugs (thanks to
Philip for noticing+reporting them)
- VFS: was getting too large to manage, now split into an additional
file
- WIP: much more efficient mounting; supports other mount sources than
file or zip (e.g. if we want to add network files); clean separation
between VFS submodules; dox; beginning of thread locking.
This was SVN commit r2589.
