* update wfst script

* add skip blank

* rename option with WITH_; add logging module to replace with glog

* refactor logging module; build pass on linux and andorid

* rename speechx

* fix wfst decode error

* replace reset with make_unique

* fix nnet thread crash && rescore cost time

* add nnet thread main

* refactor directory

* update u2pp latest static graph

* add requirement

* add utils

* update doc

* update result

* update result

* update result

* fix cmake

* imporove scripts

* update result

* add quant model and script

* add profiling timer