Library and benchmark program for Arctic and Shine

Ian Goldberg ffeb7f6545 Refactor combinecomm so that it's just a convenience wrapper around verify and agg 10 mesi fa
src ffeb7f6545 Refactor combinecomm so that it's just a convenience wrapper around verify and agg 10 mesi fa
Cargo.toml 55187fb080 Use itertools::combinations instead of rolling our own 10 mesi fa