* g10/keygen.c (parse_key_parameter_part): Add arg R_KEYGRIP and
support the special algo "card".
(parse_key_parameter_string): Add args R_KEYGRIP and R_SUBKEYGRIP.
Handle the "card" algo. Adjust callers.
(parse_algo_usage_expire): Add arg R_KEYGRIP.
(quickgen_set_para): Add arg KEYGRIP and put it into the parameter
list.
(quick_generate_keypair): Handle algo "card".
(generate_keypair): Also handle the keygrips as returned by
parse_key_parameter_string.
(ask_algo): Support ed25519 from a card.
--
Note that this allows to create a new OpenPGP key from an initialized
OpenPGP card or from any other supported cards. It has been tested
with the TCOS Netkey card. Right now a stub file for the cards might
be needed; this can be achieved by running "gpgsm --learn" with the
card plugged in.
Example:
gpg --quick-gen-key foo@example.org card
Signed-off-by: Werner Koch <wk@gnupg.org>