Fixed

• Fix: Resource Manager -> Occupation cost shows without occupying starbases.
  
• Fix: Battle -> Retreat -> Sometimes retreats to systems with enemies in, meaning the battle continues.
  
• Fix: Load Save -> Does not update resource count.
  
• Fix: Agendas -> Opinion modification does result in correct values.
  

Optimized

• Optimize: AI agendas and AI opinion calculations now use parallel processing.