card: Print usage info for each key.
* tools/card-call-scd.c (learn_status_cb): Handle extended KEYPARIRINFO. * tools/card-tool.h (struct key_info_s): Add field 'usage'. * tools/gpg-card-tool.c (list_one_kinfo): Show usage flags.
- Signed-off-by: Werner Koch <wk@gnupg.org>