pidgin/pidgin

Convert XmppDiscoService into a GObject

17 months ago, Elliott Sales de Andrade
af20db93f2c2
Convert XmppDiscoService into a GObject

This will enable porting things to binding/expression lookup.

I probably didn't _really_ need to make everything properties, but that was easier to do than figure out which ones would really be needed.

Testing Done:
Ran discovery on `pidgin.im`; saw `conference.pidgin.im` show up, then expanded it and the various rooms appeared, as they should. Clicked Add on a few and verified that the Add Chat dialog appeared with the correct values.

Reviewed at https://reviews.imfreedom.org/r/2210/
// SPDX-FileCopyrightText: 2021 GNOME Foundation
// SPDX-License-Identifier: LGPL-2.1-or-later
// A map between namespaces and base URLs for their online documentation
baseURLs = [
[ 'GLib', 'https://docs.gtk.org/glib/' ],
[ 'GObject', 'https://docs.gtk.org/gobject/' ],
[ 'Gnt3', 'https://docs.imfreedom.org/gnt3/' ],
[ 'Purple3', 'https://docs.imfreedom.org/purple3/' ],
]