Clean up main crate and more work on macro

Signed-off-by: Lucio Franco <[email protected]>

tonic-examples/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "tonic-examples"
+version = "0.1.0"
+authors = ["Lucio Franco <[email protected]>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[[bin]]
+name = "helloworld-server"
+path = "src/helloworld/server.rs"
+
+# [[bin]]
+# name = "helloworld-client"
+# path = "src/helloworld/client.rs"
+
+[dependencies]
+tonic = { path = "../tonic" }
+tower-h2 = { path = "../tower-h2" }
+futures-preview = { version = "=0.3.0-alpha.17", default-features = false, features = ["alloc"]}
+tokio = "=0.2.0-alpha.1"
+prost = "0.5"
+prost-derive = "0.5"
+bytes = "0.4"