tool/unicode_norm_gen.rb, lib/unicode_normalize.rb:
File name change from lib/unicode_normalize/normalize_tables.rb
to lib/unicode_normalize/tables.rb.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48015 b2dd03c8-39d4-4d8f-98ff-823fe69b080e