Added documentation to some `add_*_plugin` methods and the corresponding `remove_*_plugin` methods. Added an example of how to register a plugin to `add_inspector_plugin` and linked to it in the other methods.
Added documentation to some `add_*_plugin` methods and the corresponding `remove_*_plugin` methods. Added an example of how to register a plugin to `add_inspector_plugin` and linked to it in the other methods.