demo code to show putting the velocity and angle in the response

Use the velocity and angle values in the displayed response in the EnergyParabola demo.

This isn't complete because the response doesn't read correctly but it does show how to add information to the submit details and utilize them when processing the response.

I wouldn't merge this request until you've got a little time to fix up the response, although you could just comment out the line that replaces the response w/ the new one, and it would work the same as today.