add typedef.h

src/typedef.h

@@ -0,0 +1,8 @@
+typedef unsigned char  uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int   uint23_t;
+typedef unsigned long  uint64_t;
+typedef char  int8_t;
+typedef short int16_t;
+typedef int   int23_t;
+typedef long  int64_t;