SSL Handshake Prompt for IMAP (#381)

* Fix an incorrect namespace for copy auth url request.

* Implemented SSL handshake process for testing imap configuration.

* Implemented SSL handshake process for testing imap configuration.

* Replace certificate PathIcon with WinoFontIcon in XAML.

Wino.Core.Domain/Exceptions/ImapTestSSLCertificateException.cs

@@ -0,0 +1,17 @@
+namespace Wino.Core.Domain.Exceptions
+{
+    public class ImapTestSSLCertificateException : System.Exception
+    {
+        public ImapTestSSLCertificateException(string issuer, string expirationDateString, string validFromDateString)
+        {
+            Issuer = issuer;
+            ExpirationDateString = expirationDateString;
+            ValidFromDateString = validFromDateString;
+        }
+
+        public string Issuer { get; set; }
+        public string ExpirationDateString { get; set; }
+        public string ValidFromDateString { get; set; }
+
+    }
+}