Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add SWIDTH information for zh_CN.eucCN.

Submitted by: ume
Obtained from: NetBSD
MFC Candidate.

Clean DIGIT/XDIGIT sections

$Id$ -> $FreeBSD$

Remove half the file, somehow it got doubled...

I have been running with these locale data for a while now and
I hope some other people might find them useful. They are for
zh_CN.EUC (GB) only. I'm not familiar with the BIG5 encoding,
so I could only hope someone else would fill the gap.

PR: 7310
Submitted by: Luoqi Chen <luoqi@chen.ml.org>