Changed the image-to-leds map by using offset-pointing.

Moved the image-buffer from processor to dispmanx-wrapper.
Added timeout handling to Hyperion.

include/utils/RgbImage.h

@@ -45,6 +45,10 @@ public:
 		return mColors;
 	}
 
+	const RgbColor* memptr() const
+	{
+		return mColors;
+	}
 private:
 
 	inline unsigned toIndex(const unsigned x, const unsigned y) const