iang/arctic: Library and benchmark program for Arctic and Shine @ 7fa9541b35d6e4c25de3aa2e5b1d16e72c6a1566

Library and benchmark program for Arctic and Shine

2 Vetvy

Ian Goldberg 7fa9541b35 hash2 and hash3 exchange names to match the paper		11 mesiacov pred
src	7fa9541b35 hash2 and hash3 exchange names to match the paper	10 mesiacov pred
Cargo.toml	55187fb080 Use itertools::combinations instead of rolling our own	10 mesiacov pred