Added connection stocks per person

DataDomain/PersonStock.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DataDomain
+{
+    public class PersonStock
+    {
+        public int Id { get; set; }
+        public int PersonId { get; set; }
+        public int StockId { get; set; }
+        public string Comment { get; set; }
+    }
+}