Library and benchmark program for Arctic and Shine

Ian Goldberg 8c27c4010e The round 1 output is now (y,R) instead of just R to match the paper il y a 1 an
src 8c27c4010e The round 1 output is now (y,R) instead of just R to match the paper il y a 1 an
Cargo.toml 6029009659 Use itertools::combinations instead of rolling our own il y a 1 an