Organize custom scripts and Shared under Assets/Scripts, and delete assembly definition files

Assets/Scripts/Shared/Game/ObjectPool.cs

@@ -0,0 +1,15 @@
+/// ---------------------------------------------
+/// Ultimate Character Controller
+/// Copyright (c) Opsive. All Rights Reserved.
+/// https://www.opsive.com
+/// ---------------------------------------------
+
+namespace Opsive.Shared.Game
+{
+    /// <summary>
+    /// Wrapper for the shared ObjectPool component.
+    /// </summary>
+    public class ObjectPool : ObjectPoolBase
+    {
+    }
+}