Began implementing windows handle, game state manager, and game loop.

src/SlatedGameToolkit.Framework/Exceptions/SDLException.cs

@@ -0,0 +1,35 @@
+using System;
+using SDL2;
+
+namespace SlatedGameToolkit.Framework.Exceptions
+{
+    /// <summary>
+    /// An SDLException is defined as an exception that is thrown whenever an error occurrs in any SDL functions.
+    /// </summary>
+    [Serializable]
+    public class SDLException : Exception {
+        public string SDLMessage { get; }
+
+        /// <summary>
+        /// Creates an SDL exception.
+        /// </summary>
+        /// <param name="Fetch">Whether or not to fetch the last error message that occurred in SDL.</param>
+        public SDLException(bool autoFlush = true) : base() {
+            if (autoFlush) {
+                SDLMessage = SDL.SDL_GetError();
+                SDL.SDL_ClearError();
+            }
+        }
+
+        public SDLException(string message, Exception inner) : base(message, inner) {
+
+        }
+
+        public SDLException(string message, bool autoFlush = true) : base(message) {
+            if (autoFlush) {
+                SDLMessage = SDL.SDL_GetError();
+                SDL.SDL_ClearError();
+            }
+        }
+    }
+}

src/SlatedGameToolkit.Framework/Exceptions/SlatedGameToolkitException.cs

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+using System;
+
+namespace SlatedGameToolkit.Framework.Exceptions
+{
+    public class SlatedGameToolkitException : Exception {
+        public SlatedGameToolkitException() {
+
+        }
+
+        public SlatedGameToolkitException(string message) : base(message) {
+
+        }
+        
+        public SlatedGameToolkitException(string message, Exception inner) : base(message, inner) {
+        }
+    }
+}