Feature: Implement H.264 and AV1 hardware encoding for remote control

Remark: Need to update FFmpeg static libraries to take effort

client/ScreenSpy.h

@@ -97,7 +97,7 @@ protected:
     EnumHwndsPrintData		m_data;
 
 public:
-    CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk = FALSE, int gop = DEFAULT_GOP, BOOL all = FALSE);
+    CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk = FALSE, int gop = DEFAULT_GOP, BOOL all = FALSE, int level = LEVEL_H264_SOFT);
 
     virtual ~CScreenSpy();