libragephoto: fix build errors and some includes

- RagePhoto-Extract: include stdio.h
- RagePhotoC: include stddef.h instead of stdio.h
- RagePhotoTypedefs: include stddef.h

src/RagePhoto-Extract.c

@@ -17,6 +17,7 @@
 *****************************************************************************/
 
 #include "RagePhotoC.h"
+#include <stdio.h>
 
 int main(int argc, char *argv[])
 {