Remove instances of message per round

Optimise sim, add majorityFlip flag

Update readme

Fix bugs preventing sim from working

Remove integer validator and tests

Fix safety tests to work with new db

Fix byz. detection tests for new db

Fix binary est. tests to work with new db

Fix msg processing tests to work with new db

Get message gen. tests working with new db

Fix db storage bug, add test

Update module exporting for network

Add broadcast fn to network

Start memoization for safety oracle

Add test to ensure consecutive message consistancy