Figure out pattern for configuration / setup

[pyricau]

• Should support init via ContentProvider, direct call, or jetpack startup
• On init, there's a bunch of work which we want to make it possible to skip / disable as a configuration option. One approach is using XML bool resources. Another approach is to have a "Configurator" class that's defined as an XML string resource and is loaded dynamically. Another option is to make configuration something possible only with manual install, where one passes the config in.