Add some initial widget functionality (prefs partly working)

PortabilityLayer/SimpleImage.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include "GpPixelFormat.h"
+#include <stdint.h>
+
+namespace PortabilityLayer
+{
+	class SimpleImage final
+	{
+	public:
+		void Destroy();
+		void *GetData();
+		const void *GetData() const;
+
+		static SimpleImage *Create(GpPixelFormat_t pixelFormat, size_t pitch, size_t dataSize);
+
+	private:
+		GpPixelFormat_t m_pixelFormat;
+		size_t m_pitch;
+		void *m_data;
+	};
+}