Extend the DetectedMovingObject with an estimated future directory

[denotte]

Describe the feature

The message DetectedMovingObject should be extended by a series of StatePoints to denote an estimated future trajectory.

Our usecase for this extension is the communication with a planer external to the simulation programm.

Describe alternatives you have considered

We looked into the TrafficUpdate, but rejected the option. The message would be detached from the better fitting sensor perception based DetectedMovingObject. It also claimes to communicate absolute truth values instead of our estimation.

Describe the backwards compatibility

The proposed change adds optional fields to an existing message. No issues with backwards compatibility expected.