[speechx]add reset of decoder&frontend

[speechx] Add run.sh for example

[speechx]align nnet & decoder

Revert "align nnet decoder & refactor"

align nnet decoder & refactor

[speechx]add raw_audio & feature_cache

[speechx] move test to examples

[speechx] libsndfile , openfst, openblas cmake

[Speechx] add cmvn

[speechx] libsndfile

[speehx] refactor cmakefile