g13: Improve dump_keyblob.
* g13/g13tuple.c: Include keyblob.h. (find_tuple_uint): Factor code out to ... (convert_uint): new. (all_printable): New. * g13/mount.c (dump_keyblob: Move and rename to ... * g13/g13tuple.c (dump_tupledesc): here. Revamp and pretyy print uint values.
- Signed-off-by: Werner Koch <wk@gnupg.org>