Generate code by protobuf for NATS

[byebyebruce]

Fist of all, I really appreciate the work you guys are doing.

I noticed that you are developing a micro mode, which is a very exciting feature. Please take a look at my work at https://github.com/byebyebruce/natsrpc. I think it has some similarities with your ideas and I hope it can provide you with some inspiration.