Added Chinese localization and loc_synched files (Huge thank you to Lunar Traveller for making all of them!)

Updated to Stellaris 2.7! (Merged changes from numerous files)

Corrected syntax error in _planetary_entities.asset (should fix a couple of minor gfx issues)

• Updated diplomatic actions to account for new Federations functionality.
  
• Updated claiming rules to account for new Lithoid devouring swarm type.
  
• Updated policies to account for new Federations policy rules and weights.