Update Unicode data and files to Unicode 10.0

Update Unicode data and files to Unicode 10.0

* admin/notes/unicode:
* admin/unidata/README:
* admin/unidata/BidiBrackets.txt:
* admin/unidata/BidiMirroring.txt:
* admin/unidata/Blocks.txt:
* admin/unidata/IVD_Sequences.txt:
* admin/unidata/NormalizationTest.txt:
* admin/unidata/SpecialCasing.txt:
* admin/unidata/UnicodeData.txt:
* lisp/international/characters.el:
* lisp/international/fontset.el (script-representative-chars):
* lisp/international/mule-cmds.el (ucs-names): Update per Unicode 10.0.