Transfering inode numbers from PX entries to IsoNode during image import

and using these numbers in PX entries during next image generation.
This also answers the concerns about PX without ino in RRIP 1.12
and PX with ino in RRIP 1.10 images produced by mkisofs.

libisofs/stream.h

@@ -74,4 +74,12 @@ int iso_stream_get_src_zf(IsoStream *stream, int *header_size_div4,
                           int *block_size_log2, uint32_t *uncompressed_size,
                           int flag);
 
+/* ts A90427 */
+/**
+ * Set the inode number of a stream that is based on FSrcStreamData, i.e.
+ * stems from the imported ISO image.
+ * @return 1 = ok , 0 = not an ISO image stream , <0 = error
+ */
+int iso_stream_set_image_ino(IsoStream *stream, ino_t ino, int flag);
+
 #endif /*STREAM_H_*/