• Update to Unicode CLDR v35 (Unicode 12.0).

• Update tools/tools/locale to add make targets to automatically generate locale source files. With this change, just typing "make obj && make -j4" will rebuild them. Check README for more details.

• Fix issues in ja_JP ctypedef and range specification support in utf8-rollup.pl.

• Add a temporary patch for UnicodeData.txt to fix code ranges of CJK Ideograph Extension A and Extension B.

• tools/cldr2def.pl: Use eucJP for ja_JP ctypedef because eucJP is not compatible with UTF-8.

• tools/convert_map.pl: Add a verbose error message.

• tools/utf8-rollup.pl: Normalize entries to use Unicode, not UTF-8.

Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D25503