Camellia test vectors

* ECB tests come from the NTT Camellia pages (as linked to by the latest
  [CRYPTREC](http://www.cryptrec.go.jp/english/method.html)).
* CFB, OFB, CBC tests from OpenSSL evptests
Merge pull request #69 from reaperhulk/camellia-vectors

Camellia test vectors