Basic Buf Example

[Luka-J9]

Readme will need a lot more detail, but this should at least show the basics of what can be accomplished.

[Luka-J9]

@thesamet Update the project to actually implement the server.

One thing that came up is that I needed to include:

"io.grpc" % "grpc-netty-shaded" % "1.54.0",

for the project to actually run. I see that the version that zio is currently built with is different which I imagine might be problematic. I didn't have time to dig deeper, so in case you have the answer before I have time to figure it out, should this be made to line up, or is there a different dependency I can pull that includes the aligned version of netty?

[Luka-J9]

I'll try to get to the readme later this week if I did everything correctly here. This is my first time writing ZIO code so feel free to correct any weirdness in the example