pidgin/pidgin

Add a settings property to PurpleCredentialProvider that is a GSettings object

Testing Done:
Ran the unit tests. However I didn't add this to the tests because adding a dummy settings object is more trouble than it's worth.

Reviewed at https://reviews.imfreedom.org/r/2145/
[wrap-file]
directory = gi-docgen-2022.1
source_url = https://download.gnome.org/sources/gi-docgen/2022/gi-docgen-2022.1.tar.xz
source_filename = gi-docgen-2022.1.tar.xz
source_hash = fefe3153979595ddad2dc81d5efa7e54c8ca3770f91a5a75710c8fd6fad4575f