static void Main(string[] args)
        {
            Projects game     = new Projects("Space Game", new DateTime(2014, 2, 4), "A space game", "open");
            Employee Mitko    = new Employee("101010", "Dimitur", "Petkov", 100m, Departments.Marketing);
            Employee Stanimir = new Employee("101020", "Stanimir", "Dimitrov", 1000m, Departments.Marketing);
            Manager  Ivan     = new Manager("101212", "Ivan", "Petrov", 200m, Departments.Marketing);

            Ivan.AddEmployee(Mitko);
            Ivan.AddEmployee(Stanimir);
            Developer Stoyan = new Developer("15", "Stoyan", "Dimov", 2000m, Departments.Production);

            Stoyan.AddProject(game);

            Console.WriteLine(Ivan.ToString());
            game.CloseProject();
            Console.WriteLine(Stoyan.ToString());
        }