add supplier repo and suppliercreationdto

AB.Contracts/ContactPersonDto.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AB.Contracts;
+
+public class ContactPersonDto
+{
+
+
+
+    public string Name { get; set; }
+
+    public string Salutation { get; set; }
+
+    public string PhoneNumer { get; set; }
+
+    public string Email { get; set; }
+
+}
+