sépare le modèle client du serveur, et crée par la même la librairie Yavsc.Api

Yavsc.Api/Model/Identity/MobileAppDeclaration.cs

@@ -0,0 +1,36 @@
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using Yavsc.Models;
+
+public class GoogleCloudMobileDeclaration {
+    [Key]
+
+    public string RegistrationId { get; set; }
+    
+    public string DeviceOwnerId { get; set; }
+    
+    public string Name { get; set; }
+    
+    [ForeignKeyAttribute("DeviceOwnerId")]
+    public virtual ApplicationUser DeviceOwner { get; set; }
+    
+    // override object.Equals
+    public override bool Equals (object obj)
+    {
+        if (obj == null || GetType() != obj.GetType())
+        {
+            return false;
+        }
+        
+        var other = obj as GoogleCloudMobileDeclaration;
+        return RegistrationId == other.RegistrationId
+        && Name == other.Name;
+    }
+    
+    // override object.GetHashCode
+    public override int GetHashCode()
+    {
+        return (RegistrationId+Name).GetHashCode();
+    }
+
+}