ibid-db --upgrade does not create database schema for custom plugins

[David Wikoff]

After a while trying to figure out why my custom plugin was not working, I fell back to looking at the source code and it looked to me that the custom plugins were not begin loaded during upgrade so my database schema was never loaded.

Here is the plugin I created and tried to run, it's pretty simple:

https://github.com/Derimagia/IBID-Plugins/blob/master/ibid/plugins/twitchbroadcaster.py

I fixed the problem by editing ibid-db myself and have attached the patch, but it's makeshift and copied from elsewhere and obviously needs someone more familiar with the codebase to look it over or point out my fault.

Thanks