Huffman coding implemented

[sicarioakki]

@hjimce @Jimce Hi thanks for the code base i tried your source code base for the tiny yolo and the mode size remained the same can you please let me knwif you have implmented the huffman coding into ur code base
2. How did ur model size decerease from 64M to 18M
3. What is the fps you have achieved by pruning the model was there any drop in the accuracy of the model and the mAP values