KeyWordSpotting (wake-word detection), speed up and compress the model

Installation guide:

1) git clone https://github.com/iamilyasedunov/key_word_spotting.git
2) cd key_word_spotting
3) bash docker_start.sh
4) docker attach ISedunov-kws_report
5) cd /home/key_word_spotting/key_word_spotting
6) python train.py
7) python test.py

Result:

**au fa fr**: 3e-05

**MACs reduction times**: 7,086758545

**Model size reduction (times):** 12,73771711

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