Idea: topic-couple score map

[gaelrenoux-datadome]

Whenever we move a topic, if the score is improved:

• decrease the score of all couples between moved topic and the topics from the slot it comes from
• increase the score of all couples between moved topic and the topics from the slot it goes to

=> This way, we'll generate scores for topics which go well together. Maybe we can use this to make better schedule ? However, this would run the risk of trying very similar schedules over and over.