chore: Add rustls examples (#968)

examples/Cargo.toml

@@ -54,10 +54,18 @@ path = "src/dynamic_load_balance/server.rs"
 name = "tls-client"
 path = "src/tls/client.rs"
 
+[[bin]]
+name = "tls-client-rustls"
+path = "src/tls/client_rustls.rs"
+
 [[bin]]
 name = "tls-server"
 path = "src/tls/server.rs"
 
+[[bin]]
+name = "tls-server-rustls"
+path = "src/tls/server_rustls.rs"
+
 [[bin]]
 name = "tls-client-auth-server"
 path = "src/tls_client_auth/server.rs"
@@ -214,6 +222,11 @@ tonic-web = { path = "../tonic-web" }
 # streaming example
 h2 = "0.3"
 
+tokio-rustls = "*"
+hyper-rustls = { version = "0.23", features = ["http2"] }
+rustls-pemfile = "*"
+tower-http = { version = "0.2", features = ["add-extension"] }
+
 
 [build-dependencies]
 tonic-build = { path = "../tonic-build", features = ["prost", "compression"] }