Benchmark-unify: map KRB5 format names

Even though these names have only been used in 1.7.9-jumbo-7+unstable
and 1.7.9-jumbo-8-unstable, make sure they are mapped to the names
that will be used for 1.7.9-jumbo-8.
Optimized the iterated SHA256 in pwsafe-cuda
Added copyright information