Moving cruftier services that are only used for tests under a test repo

test/template/proto/idiomatic.proto

@@ -0,0 +1,39 @@
+syntax = "proto3";
+
+package idiomatic;
+
+option go_package = "proto;idiomatic";
+
+service Idiomatic {
+	rpc Call(Request) returns (Response) {}
+	rpc Stream(StreamingRequest) returns (stream StreamingResponse) {}
+	rpc PingPong(stream Ping) returns (stream Pong) {}
+}
+
+message Message {
+	string say = 1;
+}
+
+message Request {
+	string name = 1;
+}
+
+message Response {
+	string msg = 1;
+}
+
+message StreamingRequest {
+	int64 count = 1;
+}
+
+message StreamingResponse {
+	int64 count = 1;
+}
+
+message Ping {
+	int64 stroke = 1;
+}
+
+message Pong {
+	int64 stroke = 1;
+}