openfst-1.6.9-win source downloaded from https://github.com/kkm000/openfst on 2018/12/10

This corresponds to https://github.com/kkm000/openfst/commit/d4dd88e17393454e252d4644b39cf496a8cd9cac

The following procedure was needed to compile with BAZEL 0.17.2:

Used VS CODE to rename the following types:
    uint64 -> uint64_t
    uint32 -> uint32_t
    uint16 -> uint16_t