+- Rework PAM ChallengeResponseAuthentication
+ - Use kbdint request packet with 0 prompts for informational messages
+ - Use different PAM service name for kbdint vs regular auth (suggest from
+ Solar Designer)
+ - Ability to select which ChallengeResponseAuthentications may be used
+ and order to try them in e.g. "ChallengeResponseAuthentication skey, pam"
+