Add dynamic container names to node instances

[tristanpoland]

At the moment it is very difficult to tell what node represents each container since the node titles are the image ID and not the container ID or name. We will make this easier by setting the name of the node to the container it represents.

[tristanpoland]

We are still working on this issue. The code needed to achieve this will be added to the GSNodeGraph library once we complete it here. Likely this feature will take the form of a method that can be called with the node ID to change it's individual title