Update Unicode support to Unicode version 14.0.0

* admin/unidata/copyright.html:
* admin/unidata/UnicodeData.txt:
* admin/unidata/Blocks.txt:
* admin/unidata/BidiBrackets.txt:
* admin/unidata/BidiMirroring.txt:
* admin/unidata/IVD_Sequences.txt:
* admin/unidata/NormalizationTest.txt:
* admin/unidata/SpecialCasing.txt:
* test/manual/BidiCharacterTest.txt: Updated files from Unicode
14.0.

* lisp/international/fontset.el (script-representative-chars): Add
new scripts.
(otf-script-alist): Update from latest version.
(setup-default-fontset): Add new scripts.
* lisp/international/characters.el: Update syntax and category
tables for new characters and scripts.
(char-width-table): Update for changes in Unicode 14.0.
* lisp/international/mule-cmds.el (ucs-names): Update used and
unused ranges per Unicode 14.0.

* test/lisp/international/ucs-normalize-tests.el
(ucs-normalize-tests--failing-lines-part1)
(ucs-normalize-tests--failing-lines-part2): Update per the test
results.

* doc/lispref/nonascii.texi (Character Properties): Update Unicode
version number.

* etc/NEWS: Announce support for Unicode 14.0.

* admin/notes/unicode: Minor copyedits.

1 files changed, 7 insertions, 2 deletions

diff --git a/admin/notes/unicode b/admin/notes/unicode
index bcede9c6ed1..87ced07bd91 100644
--- a/admin/notes/unicode
+++ b/admin/notes/unicode
@@ -12,11 +12,11 @@ Emacs uses the following files from the Unicode Character Database
   . UnicodeData.txt
   . Blocks.txt
   . BidiBrackets.txt
-  . BidiCharacterTest.txt
   . BidiMirroring.txt
   . IVD_Sequences.txt
   . NormalizationTest.txt
   . SpecialCasing.txt
+  . BidiCharacterTest.txt
 
 First, the first 7 files need to be copied into admin/unidata/, and
 the file https://www.unicode.org/copyright.html should be copied over
@@ -81,7 +81,12 @@ regarding failing lines.
 
 The file BidiCharacterTest.txt should be copied to the test suite, and
 if its format has changed, the file biditest.el there should be
-modified to follow suit.
+modified to follow suit.  If there's trailing whitespace in
+BidiCharacterTest.txt, it should be removed before committing the new
+version.
+
+etc/NEWS should be updated to announce the support for the new Unicode
+version.
 
 Problems, fixmes and other unicode-related issues
 -------------------------------------------------------------