add department sql join query, alter person model to fit department data

Person.cs

@@ -12,17 +12,21 @@ namespace it_projekt
         public string Lastname { get; set; }
         public string Firstname  { get; set; }
         public DateTime CreationDate { get; set; }
+        public string department_short { get; set; }
+        public string department_long { get; set; }
 
         public Person()
         {
 
         }
-        public Person(string Id, string Lastname, string Firstname, DateTime CreationDate) 
+        public Person(string Id, string Lastname, string Firstname, DateTime CreationDate, string department_short, string department_long) 
         { 
             this.Id = Id;
             this.Lastname = Lastname;
             this.Firstname = Firstname;
             this.CreationDate = CreationDate;
+            this.department_short = department_short;
+            this.department_long = department_long;
         }
     }
 }