Update to Unicode 16.0

Based on perl 5.42.0.

branches: 1.10.2;
Update Unicode tables to 15.0.0.

This is based on the tables provided by perl 5.37.7.

Update Unicode tables.

These tables are for Unicode 14.0.0 using the data provided with
perl 5.36.0.

Update unicode tables.

This version of the file, and the generator script, come from
OpenBSD. The script was written by Andrew Fresh.

The file covers the encodings from Unicode 13.0.0, based on the files
distributed with perl 5.32.1.

branches: 1.7.2;
Add "Emoji & Pictographs" character definitions from Unicode 15.0.0
(previously 10.0.0):

http://www.unicode.org/charts/

They are classified as PUNCT, which has been used for characters other
than blank, alphabetic, or digit ones.

Glyph widths are taken from "East Asian Width":

https://www.unicode.org/Public/15.0.0/ucd/EastAsianWidth.txt

Characters of "F" or "W" are classified to SWIDTH2, and others are to
SWIDTH1, as usual. See also:

https://www.unicode.org/reports/tr11/

XXX
It would be really nice if someone could check and update characters in
categories other than Emoji...

Add characters in "Emoji & Pictographs" from Unicode 10.0.0:
http://www.unicode.org/charts/

They are classified as PUNCT, which is historically used for characters other
than blank, alphabetic, or digit ones.

Glyph widths are taken from "East Asian Width":
https://www.unicode.org/Public/10.0.0/ucd/EastAsianWidth.txt
Characters of "F" or "W" are classified to SWIDTH2, and others are classified
to SWIDTH1, as implicitly done in the previous revisions.

Should address problems like PR bin/53323.

Discussed with soda@. We thank Takuya SHIOZAKI (tshiozak@) for useful comments.

branches: 1.5.30;
fix PR lib/46772 wcwidth of combining characters.
patch probyted by yamt@, thanks.

branches: 1.4.48;
merge resent FreeBSD UTF-8 locale.
now support outside BMP area.

Replace with a much better one which covers the whole Unicode range,
from U+0000 to U+FFFF.

Contributed by Hye-Shik Chang <perky@freebsd.org>. Thanks, perky!

branches: 1.2.2;
support nl_langinfo(CODESET).

move src/share/mklocale into src/share/locale/ctype. PR 11838.