Fix mirrors, poly draw (WIP), and game over screen. Temp disable high scores.

PortabilityLayer/ScanlineMaskIterator.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <stdint.h>
+
+#include "ScanlineMaskDataStorage.h"
+
+namespace PortabilityLayer
+{
+	class ScanlineMaskIterator
+	{
+	public:
+		ScanlineMaskIterator(const void *data, ScanlineMaskDataStorage dataStorage);
+		size_t Next();
+
+	private:
+		const void *m_loc;
+		const ScanlineMaskDataStorage m_storage;
+	};
+}