Initial work on implementing Pokemon

PkmnLib.Dynamic/Events/Handling/EventHook.cs

@@ -0,0 +1,21 @@
+namespace PkmnLib.Dynamic.Events;
+
+/// <summary>
+/// The event hook of a battle. This is used to hook into the battle and get notified when something
+/// happens that a front-end might want to know about.
+/// </summary>
+public class EventHook
+{
+    /// <summary>
+    /// The event handler that is called when the event is triggered.
+    /// </summary>
+    public event EventHandler<IEventData>? Handler;
+    
+    /// <summary>
+    /// Triggers the event, calling the handler with the given data.
+    /// </summary>
+    public void Invoke(IEventData data)
+    {
+        Handler?.Invoke(this, data);
+    }
+}