Fix NullPointerException if no information about a loaded plugin is available.
Fix character encoding for German letter "ü".
Adds constructor for the APDU variant which requires a resetting code and new ref data.

Furthermore the commit adds new getters which indicate the different requirements of this APDU.
Fix transitions to unblock PIN1 and PIN2
Add unblocking mechanism for CSA-PWD and SIG-PIN.

NOTE: The current mechanism allows only to use the ResettingCode with the ID 0.
Fix unblocking of PIN.CH and SIG-PIN.

This includes the removal of the PUKs and all AccessRules which depend on them.
Fix wrong DIDNames in StateTransition of the Karten-PIN DID
Fix dss namespace.