iang/arctic: Library and benchmark program for Arctic and Shine @ 66efc56a2472100602a28d0bd1f172c80f1cd0d5

Library and benchmark program for Arctic and Shine

Ian Goldberg 66efc56a24 The round 1 output is now (y,R) instead of just R to match the paper		пре 10 месеци
src	66efc56a24 The round 1 output is now (y,R) instead of just R to match the paper	пре 10 месеци
Cargo.toml	55187fb080 Use itertools::combinations instead of rolling our own	пре 10 месеци