Before this change, it is layered like following:
iso7816_verify
iso7816_verify_kp
apdu_send_simple, apdu_send_simple_kp
...
After this change, it will be layered like:
iso7816_verify iso7816_verify_kp
apdu_send_simple apdu_keypad_verify
...
and apdu_send_simple_kp will be deprecated.
For PC/SC API, we use:
SCardControl API to compose CCID PC_to_RDR_Secure message
SCardTransmit API to compose CCID PC_to_RDR_XfrBlock message
Considering the support of PC/SC, we have nothing to share between _kp
version of iso7816_* and no _kp version.
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces. In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much. For future commits the pre-commit scripts
checks that this won't happen again.
