chore: Added Initial Engine Code

Engine.Core/Abstract/IInitialize.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace Syntriax.Engine.Core.Abstract;
+
+public interface IInitialize : IEntity
+{
+    Action<IInitialize>? OnInitialized { get; set; }
+    Action<IInitialize>? OnFinalized { get; set; }
+    bool Initialized { get; }
+
+    bool Initialize();
+    bool Finalize();
+}