Basic implementation of a few editor tools

src/Artemis.UI/Events/MainWindowKeyEvent.cs

@@ -0,0 +1,16 @@
+using System.Windows.Input;
+
+namespace Artemis.UI.Events
+{
+    public class MainWindowKeyEvent
+    {
+        public bool KeyDown { get; }
+        public KeyEventArgs EventArgs { get; }
+
+        public MainWindowKeyEvent(bool keyDown, KeyEventArgs eventArgs)
+        {
+            KeyDown = keyDown;
+            EventArgs = eventArgs;
+        }
+    }
+}