Update freetype to 2.5.4.

third_party/freetype/include/internal/ftdebug.h

Index: third_party/freetype/include/internal/ftdebug.h
diff --git a/core/src/fxge/fx_freetype/fxft2.5.01/include/freetype/internal/ftdebug.h b/third_party/freetype/include/internal/ftdebug.h
similarity index 99%
rename from core/src/fxge/fx_freetype/fxft2.5.01/include/freetype/internal/ftdebug.h
rename to third_party/freetype/include/internal/ftdebug.h
index e7b14191af1483840d5bc2fafe3d9e2655101664..58a3916d7e50f37a67880018d02ebb3fd371f329 100644
--- a/core/src/fxge/fx_freetype/fxft2.5.01/include/freetype/internal/ftdebug.h
+++ b/third_party/freetype/include/internal/ftdebug.h
@@ -25,9 +25,9 @@
 #define __FTDEBUG_H__
 
 
-#include "../../ft2build.h"
-#include "../config/ftconfig.h"
-#include "../freetype.h"
+#include <ft2build.h>
+#include FT_CONFIG_CONFIG_H
+#include FT_FREETYPE_H
 
 
 FT_BEGIN_HEADER
@@ -56,7 +56,7 @@ FT_BEGIN_HEADER
   /* defining the enumeration */
   typedef enum  FT_Trace_
   {
-#include "fttrace.h"
+#include FT_INTERNAL_TRACE_H
     trace_count
 
   } FT_Trace;