Docker image to run Pegasus with TensorFlow 1.15 and CUDA 10

[guibaure]

I created a Docker image and a make file to run Pegasus with the appropriate configuration.

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[guibaure]

@googlebot I signed it!

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[sbatururimi]

@mothguib Are you able to use the GPU with your image?
Tried to follow your pipeline but after running

pip install -r requirements

I lose the connection to the GPU with tensorflow, .i.e

python -c "import tensorflow;print(tensorflow.test.is_gpu_available())"

returns false