OrderState enum introduced
 introduced the orderstate in the OrderInstance class
 setOrderState command introduced AND now useing OrderPrinter class
 [refactor] unnecessary basePackageClasses removed from @ComponentScan
 [refactor] prettier toString() method
 [refactor] now following the ENUM conventions and toString() method is overriden
 [refactor] getter for orderstate introduced AND prettier toString()
 OrderInstance finder method implemented
 OrderPrinter now prints orders
 [refactor] OrderRepository is now has @Scope(singleton) annotation
 [refactor] ComponentScanHelper now can not be nor instantiated, nor extended