Add support for RFC5649 key wrapping with padding.
Add RFC5649 tests to evptests.txt
Based on PR#3434 contribution by Petr Spacek <pspacek@redhat.com>.
EVP support and minor changes added by Stephen Henson.
Doxygen comment block updates by Tim Hudson.
Reviewed-by: Tim Hudson <tjh@openssl.org>
Add support for key wrap algorithms via EVP interface.
Generalise AES wrap algorithm and add to modes, making existing
AES wrap algorithm a special case.
Move test code to evptests.txt