App.java: testovanie pridavania a vyberania Loan entity

LoanDAO.java: interface DAO objektu pre entitu load podla UML diagramu (knihovna_v5.zargo)

LoanDAOImpl.java: implementacia LoanDAO interface

Customer.java: pridanie zavislosti OneToMany s entitou Loan (not 100% sure about this)

Loan.java: implementacia entity Loan

ConditionType.java: pridanie ConditionType enumu (podla knihovna_v5.zargo)

StatusType.java: pridanie StatusType enumu (podla knihovna_v5.zargo)

LoanDAOException.java: pridanie vynimky pre LoanDAO triedu