* scd/scdaemon.c (oDebugAllowPINLogging): New.
(opts): Add option.
(main): Set option.
* scd/scdaemon.h (opt): Add debug_allow_pin_logging.
* scd/apdu.c (pcsc_send_apdu): Do not hide the PIN dat in the debug
output if the option is set.
(send_apdu_ccid): Ditto.