NetBSD `ls` utility, revision 1.75.4.1.

Really hacky port. Sorry.

This tool has been only validated with the modified StdLib libraries in this distributon.

Limitations (mostly of edk2 StdLib implementation):

Terminal columns always 80.
No -o option (show flags)
No -i option (show inode)
No -q option (don't hide unprintable chars as ?)
No -B option (escape non-printing chars as octal)
No -b option (escape non-printing chars as C escapes)
-X is useless (there are no mount points)
-W is useless (there are no whiteouts)
-A is useless (always root)
uid/gid is 0/0 (none/none)
block sizes are always 512 or 1024 (via -k), UEFI-derived st_blksize is not honored
no minor/major info for devices
no ctime
no link counts (all link counts are 1)
No way to detect directory cycles (so uh, be careful with third-part file system drivers)
No symlinks support
Locale decimal delimiter is always .

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