imeplement all Dialog-API functions

ElectronNET.API/Entities/CertificateTrustDialogOptions.cs

@@ -0,0 +1,15 @@
+namespace ElectronNET.API.Entities
+{
+    public class CertificateTrustDialogOptions
+    {
+        /// <summary>
+        /// The certificate to trust/import.
+        /// </summary>
+        public Certificate Certificate { get; set; }
+
+        /// <summary>
+        /// The message to display to the user.
+        /// </summary>
+        public string Message { get; set; }
+    }
+}