Pidgin libpurple bridge to signald.
This build does not crash when used with a GroupV2.
There are features missing regarding the new groups, most notably the UUID to number translation.
This version has support for the new signald protocol and proper group chats thanks to Brett Kosinski.
This version links to existing devices thanks to Torsten.
This version handles attachments thanks to Hermann Kraus.
This version can actually be used.
All messages of group chat are aggregated into a single conversation, though.
First somewhat workable version. Only single recipient messaging was tested.