add serde traits to generated code

scripts/rust-gen.sh

@@ -8,4 +8,6 @@ do
 		--prost_out=./rust-grpc/$name \
 		--tonic_out=./rust-grpc/$name \
 		$f
+	#I couldn't figure out how to configure protoc to do this
+	sed -i "s/::prost::Message/::prost::Message, serde::Serialize, serde::Deserialize/g" "./rust-grpc/$name/$name.rs"
 done