feat(build): Add disable_comments option (#1127)

tests/disable_comments/build.rs

@@ -0,0 +1,11 @@
+fn main() {
+    let mut config = prost_build::Config::default();
+    config.disable_comments(&["test.Input1", "test.Output1"]);
+    tonic_build::configure()
+        .disable_comments("test.Service1")
+        .disable_comments("test.Service1.Rpc1")
+        .build_client(true)
+        .build_server(true)
+        .compile_with_config(config, &["proto/test.proto"], &["proto"])
+        .unwrap();
+}