Add suffix `Controller` for NavigationStack and ModalStack to resolve ambiguous naming with new SwiftUI API `NavigationStack` in Xcode 14

Fixes:

• Fix animation break on first modal present with fullScreenCover style

Full Changelog: 0.3.0...0.4.0

Refactoring and documentation

• Add documentation and examples
• Rename screenTag to tag
• add property itemsCount in Navigation|ModalStack

Replace ScreenNavigator on Navigation|ModalStack

0.2.0

Replace ScreenNavigator on NavigationStack and ModalStack

First release

0.1.0

Initial Commit