fix hmac problem

getName from PassportApplet

getPuKxCx

code review, change version string, change aaguid, remove redundant flag in the response of info command, rename project

add some scripts and tasks in build.gradle
    1. getCount : get the number of generated credentials
    2. reset : remove all the generated credentials

rename variables

return number of credentials

This reverts commit 8f1a1584.