Add Iterator pattern to behavioral patterns list

feat: implement Iterator pattern examples with various use cases

Add @OverRide annotations and library declaration in service locator …

Add State pattern to behavioral design patterns list

docs: add implementation steps for State pattern

feat: add state pattern implementation with examples

fix: improve code formatting and string interpolation in strategy pat…

docs: improve markdown formatting and code examples readability

docs: add strategy pattern link to README

refactor: improve dependency injection examples and code style

Initial project setup with Dart configuration files

feat: add Strategy pattern implementation with examples

Update First Example Url

Create Command Design Pattern

Merge branch 'master' of github.com:AdelDaniel/learn-design-patterns-…

Update Main README

Add Service Locator