refactor(Receiver): bring related props from EnvelopeReceiver

EnvelopeGenerator.Domain/Entities/Receiver.cs

@@ -41,6 +41,26 @@ public class Receiver
     public DateTime? TfaRegDeadline { get; set; }
 
     public List<EnvelopeReceiver> EnvelopeReceivers { get; set; }
+
+    #region Model of old serice
+    [NotMapped]
+    public DateTime SignedDate { get; set; } = DateTime.MinValue;
+
+    [NotMapped]
+    public Constants.ColorType ColorType { get; set; }
+
+    [NotMapped]
+    public string SignedDateDisplayValue =>
+        SignedDate == DateTime.MinValue ? "-" : SignedDate.ToString("G");
+
+    [NotMapped]
+    public Color Color => ColorType.ToColor();
+
+    public string GetSignature()
+    {
+        return EmailAddress.ToUpperInvariant().GetChecksum();
+    }
+    #endregion
 }
 
 #if NETFRAMEWORK