CAST5 CBC, OFB, CFB vectors made from the AES MMT test data
update headers for the CAST5 vectors
add cast5 (cbc, cfb, ofb) vector source info to docs
improve formatting and fix pep8 for generate/verify cast5 scripts
remove unused var
show the entire files
Merge pull request #589 from reaperhulk/cast5-bespoke-vectors

CAST5 CBC, OFB, CFB vectors made from the AES MMT test data