Began working on a graphical playground for testing.

Improved SDL exception class.

Engine code changes.

General progress.

src/SlatedGameToolkit.Tools/Utilities/GraphicalPlayground/MainState.cs

@@ -0,0 +1,40 @@
+using SlatedGameToolkit.Framework.StateSystem;
+using SlatedGameToolkit.Framework.StateSystem.States;
+
+namespace SlatedGameToolkit.Tools.Utilities.GraphicalPlayground
+{
+    public class MainState : IState
+    {
+        public bool Activate()
+        {
+            return true;
+        }
+
+        public bool Deactivate()
+        {
+            return true;
+        }
+
+        public void Dispose()
+        {
+        }
+
+        public string getName()
+        {
+            return "main state";
+        }
+
+        public void Initialize(Manager manager)
+        {
+
+        }
+
+        public void Render(double delta)
+        {
+        }
+
+        public void Update(double delta)
+        {
+        }
+    }
+}