Make GPluginManager a final type
Review Request #1028 — Created Oct. 12, 2021 and submitted — Latest diff uploaded
- Use g_signal_new_class_handler to handle the accumulator based signals
- Remove the optional struct offset for the non accumulator based signals
- This all fixes the warnings from vapigen as well
Ran the unit tests, gplugin-query, and gplugin-gtk3-viewer without issue.