The SMC

[jamesray1]

Although you've probably realized by now, I am working on the SMC. It is available here: https://github.com/Drops-of-Diamond/sharding/blob/develop/smc/Sharding_Manager_Contract.v.py. I won't make a PR as there is still further work to do on it, but it may be delayed due to communicating with colleagues and reviewing their work in Rust at https://github.com/Drops-of-Diamond/diamond_drops. I've also been talking with the Vyper team on Gitter, they've been very helpful.