Remove Controls Navigation Controller

[PureWeen]

Description of Change

This class currently isn't used anywhere so its existence is confusing. It was incorrectly referenced inside the controls mappers. The NavigationViewHandler on iOS was never completed, the code was left there with the good intention of being completed but alas there has not been time for that yet. So, for now, we should just delete this code to reduce confusion.

• Delete ControlsNavigationController because it's internal and not used anywhere
• throw not implement exceptions on the iOS NavigationViewHandler so if it's accidentally used the user is directed to the correct handler. I've ran into this a number of times writing tests where I'll map the wrong handler.
• Modify the handling of 'largertitles' and 'translucent' to use the mapper methods that were created. Those mapper methods weren't really doing anything which is why that code still worked. Those platform specifics were being handled by the code already inside NavigationRenderer
• Add tests for largetitles and transluscent