Add project files.

Nodify/Minimap/Events/ZoomEventArgs.cs

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+using System;
+using System.Windows;
+
+namespace Nodify.Events
+{
+    /// <summary>
+    /// Represents the method that will handle <see cref="Minimap.Zoom"/> routed event.
+    /// </summary>
+    /// <param name="sender">The object where the event handler is attached.</param>
+    /// <param name="e">The event data.</param>
+    public delegate void ZoomEventHandler(object sender, ZoomEventArgs e);
+
+    /// <summary>
+    /// Provides data for <see cref="Minimap.Zoom"/> routed event.
+    /// </summary>
+    public class ZoomEventArgs : RoutedEventArgs
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ZoomEventArgs"/> class using the specified <see cref="Zoom"/> and <see cref="Location"/>.
+        /// </summary>
+        public ZoomEventArgs(double zoom, Point location)
+        {
+            Zoom = zoom;
+            Location = location;
+        }
+
+        /// <summary>
+        /// Gets the zoom amount.
+        /// </summary>
+        public double Zoom { get; }
+
+        /// <summary>
+        /// Gets the location where the editor should zoom in.
+        /// </summary>
+        public Point Location { get; }
+
+        protected override void InvokeEventHandler(Delegate genericHandler, object genericTarget)
+            => ((ZoomEventHandler)genericHandler)(genericTarget, this);
+    }
+}