move around new Addon services a bit to match folder structure

Dalamud/Game/Addon/Lifecycle/AddonEvent.cs

@@ -0,0 +1,62 @@
+namespace Dalamud.Game.Addon.Lifecycle;
+
+/// <summary>
+/// Enumeration for available AddonLifecycle events.
+/// </summary>
+public enum AddonEvent
+{
+    /// <summary>
+    /// Event that is fired before an addon begins it's setup process.
+    /// </summary>
+    PreSetup,
+
+    /// <summary>
+    /// Event that is fired after an addon has completed it's setup process.
+    /// </summary>
+    PostSetup,
+
+    /// <summary>
+    /// Event that is fired before an addon begins update.
+    /// </summary>
+    PreUpdate,
+
+    /// <summary>
+    /// Event that is fired after an addon has completed update.
+    /// </summary>
+    PostUpdate,
+
+    /// <summary>
+    /// Event that is fired before an addon begins draw.
+    /// </summary>
+    PreDraw,
+
+    /// <summary>
+    /// Event that is fired after an addon has completed draw.
+    /// </summary>
+    PostDraw,
+
+    /// <summary>
+    /// Event that is fired before an addon is finalized.
+    /// </summary>
+    PreFinalize,
+    
+    /// <summary>
+    /// Event that is fired before an addon begins a requested update.
+    /// </summary>
+    PreRequestedUpdate,
+    
+    /// <summary>
+    /// Event that is fired after an addon finishes a requested update.
+    /// </summary>
+    PostRequestedUpdate,
+    
+    /// <summary>
+    /// Event that is fired before an addon begins a refresh.
+    /// </summary>
+    PreRefresh,
+    
+    /// <summary>
+    /// Event that is fired after an addon has finished a refresh.
+    /// </summary>
+    PostRefresh,
+}