* Support unit tests on Yubikey NEO
* Test ykpiv_get_version
* Test ykpiv_import_private_key
* Test ykpiv_sign_data
* Test ykpiv_decipher_data
* Test ykpiv_change_pin
* Test ykpiv_change_puk
* Test ykpiv_get_pin_retries
* Test ykpiv_set_pin_retries
* Test ykpiv_verify
* Fix segfault when |tries| is NULL
* Fix segfault when import_private_key algorithm is wrong
This keeps the test logic the same, but moves most of them into the libcheck
test suite framework. It gives better control over grouping related tests,
running them in parallel, and reporting on multiple failures.
Running in parallel also brings problems, so libykcs11 tests are left
untouched. Parallel access to a single hardware DUT does not make sense,
and pcsc-lite doesn't work after a fork() in OS X 10.11+, so it can't run
in libcheck's tests anyway.
Trevor Bentley