UI - Implemented tray icon

UI - Moved dialog service to the shared UI project
UI - Implemented autorun

src/Artemis.UI.Shared/Screens/Dialogs/ExceptionDialogViewModel.cs

@@ -0,0 +1,27 @@
+using System;
+using Artemis.UI.Shared.Services.Dialog;
+using ICSharpCode.AvalonEdit;
+using ICSharpCode.AvalonEdit.Document;
+
+namespace Artemis.UI.Shared.Screens.Dialogs
+{
+    public class ExceptionDialogViewModel : DialogViewModelBase
+    {
+        public ExceptionDialogViewModel(string message, Exception exception)
+        {
+            Header = message;
+            Exception = exception;
+            Document = new TextDocument(new StringTextSource(exception.StackTrace));
+        }
+
+        public string Header { get; }
+        public Exception Exception { get; }
+
+        public IDocument Document { get; set; }
+
+        public void Close()
+        {
+            Session.Close();
+        }
+    }
+}