Added support of MultipeerConnectivity

Hello Drew,

After a few months away I am back giving a try making Ensembles work with the MultipeerConnectivity framework. This is a first version, is it designed as you thought it should be ?

My apologies about putting SSZipArchive directly in the Idiomatic project. I tried to put it as a submodule but I failed, I suck at config in general...

Thanks a lot!