Fixes #86
Tested on a live devnet via `scripts/test-injection.sh 0`. ghstack-source-id: 92489c2455 Pull Request resolved: https://github.com/certusone/wormhole/pull/104
92489c2455
Improved devnet setup to generate deterministic node and guardian keys. Devnet setup routine that configures a dynamic guardian set on Ethereum. Configurable number of nodes in Tiltfile.