Updated megastructure tech requirements

Readjusted AI weights and megastructure costs

Bug fixes, localisation fixes, adjusted upkeep reduction of mega recycler

Added Grand Bazaar

lowered upkeep costs; lowered AI weight significantly

Removed disable on kill tweak and made it a separate mod

Added heliopause defense station; made castle station an orbital station

Adjusted castle defense to be 1 per system to prevent AI spam

Reduced energy costs on military stations

initial release