Add an stdio channel, parseable output for the verifier and a card proxy
Merge pull request #25 from puiterwijk/stdio-channel

Add an stdio channel, parseable output for the verifier and a card proxy

Code reviewed by rijswijk
Add parseable issuer with STDIO support
Merge pull request #26 from puiterwijk/parseable-issuer

Add parseable issuer with STDIO support
Make issuer pin-entry of issuer same mechanism as verifier.
Make it possible to do PIN entry for issuer and verifier "client"-side with STDIO channel.