a demo to show converting caffe models on 'imagenet' using caffe2fluid

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# How to use

1. prepare python environment
2. download caffe model to "models.caffe/xxx" which contains "xxx.caffemodel" and "xxx.prototxt"
3. run the tool
    eg: bash ./run.sh resnet50 ./models.caffe/resnet50 ./models/resnet50
