Robot movement without interaction (explorative movement)

[mezdahun]

As robots have a limited angle of view, we also need to define the robots movement when there is no object to interact with in the available FOV. This could be a slow and smooth brownian motion. The task is to check for best practices and implement a reasonable rest movement that enables the robots to find interaction partners on the long run.

[mezdahun]

Still TODO:

• make explorative movement optional
• create rotation movement as optional exploratory movement which can be configured
• finalize tests