Added code for Person / Address

StockDAL/AddressRepository.cs

@@ -0,0 +1,23 @@
+using DataDomain;
+using DatamodelLibrary;
+using StockDAL.Interface;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace StockDAL
+{
+    public class AddressRepository : IAddressRepository
+    {
+        public Address GetAddressById(int AddressId)
+        {
+            using var context = new StockContext();
+            var entity = (from adr in context.Addresses
+                          where adr.Id == AddressId
+                          select adr).FirstOrDefault();
+            return entity;
+        }
+    }
+}