Rotate towards sensors

[Krabgalasch]

The logic for the rotation towards the sensors needs to be updated. Right now we only rotate slightly towards other agents when they get close.

Here is an example:

[Isabelle-Gbl]

for documentation: We have the options here if two sensores that are next to each other detect the same amount of pheromones: either the next move will be choosen random or in the middle of the two sensores. This second option would need more time to be calculated.