Failed to compile when using google protobuf files #17
Description
Describe the bug
cloudwego/kitex#835
When importing google protobuf files, such as timestamp, those structs don't have fastpb interface, so users cannot compile codes.
To Reproduce
syntax = "proto3";
option go_package = "pbdemo";
import "google/protobuf/timestamp.proto";
package pbdemo;
service ServiceA {
rpc SayHello (Request) returns (Reply) {}
}
message Request {
string name = 1;
google.protobuf.Timestamp date = 4;
}
message Reply {
string message = 1;
}