2017/Aug/6

Open-CV 3.3 DNN demonstration.

Note that to avoid huge data transfer on git, the bvlc_googlenet.caffemodel is in .gitignore file. 
To download the bvlc_googlenet.caffemodel, access : 
https://github.com/weiliu89/caffe/tree/ssd#models
To select the relevant caffemodel to the above prototxt,  07+12, SSD300 of the Pascal VOC.
Do not use the prototxt in the opencv sample. 


