OrderApp class introduced
 [refactor] removed the unnecessary methods from OrderTaker
 toString() methods added
 modified yaml file to make the yaml menu repo different
 [refactor] creating the OrderInstances with @Bean
 prettier console printing
 [refactor] orderitems now stored in Map
 @Scope(prototype) annotation added to OrderItem
 OrderTaker prints out menus from the menurepositories
 @Lazy annotation added to OrderPrinter and @Autowired to the constructor