- common.mk: set UNICODE_VERSION and UNICODE_EMOJI_VERSION to 12.0.0
- lib/unicode_normalize/tables.rb: update table data to Unicode version 12.0.0
- enc/unicode/12.0.0/casefold.h, enc/unicode/12.0.0/name2ctype.h: add generated
files for Unicode version 12.0.0
This is the main commit for #15321.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67169 b2dd03c8-39d4-4d8f-98ff-823fe69b080e