iang/arctic: Library and benchmark program for Arctic and Shine @ 3a26321d664ac8983acd3eefdd46f484835afd0e

Library and benchmark program for Arctic and Shine

Ian Goldberg 3a26321d66 Have arctic::keygen also return a vector of each player's individual public key to match the paper		11 mesi fa
src	3a26321d66 Have arctic::keygen also return a vector of each player's individual public key to match the paper	10 mesi fa
Cargo.toml	55187fb080 Use itertools::combinations instead of rolling our own	10 mesi fa