Add videostream dev code

extras/VS_Dev.h

@@ -0,0 +1,15 @@
+#pragma once
+#include "VideoStream.h"
+
+class VSDev : public VideoStream
+{
+  public:
+	VSDev();
+	int GetFrameFromStream(char **Buffer);
+	void FreeFrameBuffer(char *Buffer);
+
+  private:
+	int GetFrameCallNum = 0;
+	char Frame1TestBuf[102737];
+	char Frame2TestBuf[104143];
+};