Demo/tnc 2014

Content Provisioning module.

It exposes an API to start and stop a data stream.

When it is said to start a data stream:
- It establishes a flow in a switch to allow the data stream reach desired destination.
- After doing that, it communicates with a ContentManager server and tells it to start sending the data stream.

When it is said to stop a data stream:
- It communicates with the ContentManager server and tells it to stop sending the data stream.
- After doing that, it removes previously established flow in the switch.