* Add hooks to ApplicationLibrary for loading DLC/updates

* Trigger DLC/update load on games refresh

* Initial moving of DLC/updates to UI.Common

* Use new models in ApplicationLibrary

* Make dlc/updates records; use ApplicationLibrary for loading logic

* Fix a bug with DLC window; rework some logic

* Auto-load bundled DLC on startup

* Autoload DLC

* Add setting for autoloading dlc/updates

* Remove dead code; bind to AppLibrary apps directly in mainwindow

* Stub out bulk dlc menu item

* Add localization; stub out bulk load updates

* Set autoload dirs explicitly

* Begin extracting updates to match DLC refactors

* Add title update autoloading

* Reduce size of settings sections

* Better cache lookup for apps

* Dont reload entire library on game version change

* Remove ApplicationAdded event; always enumerate nsp when autoloading