add some encoding test

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

server/grpc/proto/test.proto

@@ -2,6 +2,8 @@ syntax = "proto3";
 
 package helloworld;
 
+option go_package = ".;helloworld";
+
 service Test {
 	rpc Call(Request) returns (Response) {}
 }
@@ -9,8 +11,15 @@ service Test {
 message Request {
   string uuid = 1;
 	string name = 2;
-}
+
+	Broken broken = 4;
+};
+
+message Broken {
+  string field = 1;
+};
 
 message Response {
 	string msg = 1;
-}
+Broken broken = 4;
+};