Add tensorflow

[cereallarceny]

Basically, we now have the ability to do the following:

• Add any tensor to an array for storage
• Remove any tensor from that array
• Get an individual tensor by id
• Get a list of all stored tensors
• Listen on a WebSocket for two commands: tensor and operation, which add a tensor to the list and perform a TensorFlow operation respectively
• Execute any TensorFlow.js arithmetic command (add, mul, sub, etc.)

[cereallarceny]

If I understand correctly, this would take care of the following issues: #7, #8, #9, and #10