[GSoC] working status

   Here is my current working status. Resolved all warnings found by Aleksander previously. Having two threads in parallel. One is the thrift binary type implementation, the other is thrift compact byte interface implementation. For these two threads, simple data type has been implemented and tested, but still need time to focus on complicated data type like struct, map or list. Let me know if you have any questions. Here is the repo with latest updates, https://github.com/charles-cui/pg_thrift

Thanks, Charles.