Building weight changes

Building weight changes.

Initial Upload

Fixed the bug where vassals hated their overlord if it's too strong or liked them if they are too weak (thanks for Fixed vassal opinions mod)

Minor changes to starbase buildings and modules (won't be relevant unless you play with mods).

AI will no longer share their newly signed commercial and research aggreements on SpaceBook.

Fixed a typo in factory ai_weights which borked the whole file.

Changed building weights a bit.

AI used to build too many factories and labs in the early game.

Fixed the bug with bad shield weight causing crash on linux.

Some changes to planetary specialisation and building weights.

Few more changes to building weights for the same reason as the previous update.

Minor change to energy district weight (in lategame energy becomes the bottleneck).