Add graphics FIFO recorder and player for debugging the graphics system.

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@7414 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/VideoCommon/Src/OpcodeDecoding.h

@@ -45,6 +45,9 @@
 #define GX_DRAW_LINE_STRIP          0x6   // 0xB0
 #define GX_DRAW_POINTS              0x7   // 0xB8
 #define GX_DRAW_NONE				0x1;  //Tis is a fake value to used in the backends
+
+extern bool g_bRecordFifoData;
+
 void OpcodeDecoder_Init();
 void OpcodeDecoder_Shutdown();
 void OpcodeDecoder_Run(bool skipped_frame);