Export Tensorflow Ops graph and the associated tracing

[eruffaldi]

1. convert tracing timeline + structure to input
2. export in specified network or use a general approach by loading a saved graph with weights and input
   e.g. e.g. https://github.com/eruffaldi/paper_simulinkad

https://github.com/tensorflow/tensorflow/blob/master/tensorflow/core/protobuf/config.proto

[eruffaldi]

Eventually use https://github.com/thtrieu/darkflow example