Use the data files from https://github.com/milesj/emojibase.git
as source for our Emoji data. Slightly change our data format by
adding a group to each item, in both the Emoji data and in the
setting for recent-emoji.
Install translated versions of the data as separate resource
bundles in $prefix/gtk-4.0/emoji, and load them when appropriate.
Currently, we have data for de, en, es, fr, zh, with data taken
from Unicode 13 and CLDR 13.
Fixes: #950#1511
No longer store variation sequences explicitly. Instead, put a 0
in the sequence where the modifiers will be inserted. This is more
compact, and it allows us to put variations directly into the
recent section. Update the type of the recent-emoji setting to
match these changes.
The json file is imported from the (MIT-licensed) emoji.json[0] node
module, which generates it from the emoji list published by the
Unicode Consortium.
This commit also adds a little tool to convert the data into
a compact GVariant, and the result of that conversion, which is
added to libgtk as a resource. The following commits will make use
of it.
[0] https://github.com/amio/emoji.json
