`tns run` should do full prepare/rebuild if something in AppResources is changes

Let's asme you develop an app and you are in run with --watch mode.
Add new image in app resources.
Result: Watcher will move the file, but it will not update `/platforms/ios/TNSApp.xcodeproj/project.pbxproj` content which is required.

Let's do full prepare/build on AppResources changes.