Fix charts & data for emoji 13.1

[macchiati]

Accumulated fixes for problems in the charts. Sorry that I didn't separate them into separate PRs.

Most of the changes are

• updating the version to 13.1
• updates to the internal data files to fix resulting generated files
• retiring or working around some awful hacks to deal with the structure of the skintones with multiperson emoji
• a couple of XUnicodeSet.java chunks of code used in testing.
• some restructuring of code while debugging problems, with some tests for particular cases (just for debugging)
• fixing some directories, since the structure changed when moving to github
• a few updates to the header text for candidate charts
• restucturing ProposalData.SINGLETON because of order-of-static-initialization problems.

[pedberg-icu]

Was this going to get fixed? (especially since VERSION_BETA below refers to it)

[pedberg-icu]

Emoji.java still seems to have

VersionInfo VERSION14 = VersionInfo.getInstance(13,1);

Otherwise seems OK

[macchiati]

Will fix, thanks

…

On Sun, Sep 13, 2020, 21:06 Peter Edberg ***@***.***> wrote: ***@***.**** commented on this pull request. Emoji.java still seems to have VersionInfo VERSION14 = VersionInfo.getInstance(13,1); Otherwise seems OK — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#25 (review)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACJLEMCWGR2TJDUJNSIYQSLSFWJDTANCNFSM4RKB3IQQ> .

[macchiati]

Just fixed the version, and the proposal data.