add oversampler

oversampling/WDL/jpeglib/jconfig.h

@@ -0,0 +1,15 @@
+#define HAVE_PROTOTYPES
+#define HAVE_STDLIB_H
+#define HAVE_UNSIGNED_SHORT
+#define HAVE_UNSIGNED_CHAR
+#ifndef _WIN32
+#define NEED_SYS_TYPES_H
+#define HAVE_STDDEF_H
+#else
+#include <windows.h>
+#define XMD_H
+#undef FAR
+#define HAVE_BOOLEAN
+typedef short INT16;
+#endif
+