Desktop app to view, control, and change info from outside the simulator

[cbess]

This update will allow you to view and alter UIView properties from outside the iOS Simulator. The desktop app "talks" to target iOS Simulator app to update it using a desktop app. The app also displays the entire UIWindow UIView hierarchy, which is interactive. This involved a lot of changes, the separate repo is here: https://github.com/cbess/CBIntrospector