Beta Branch: Bugfixes and Balance changes

-Bugfix to prevent dark empires existing into the next age

-Dark empires no longer spawn investigators

-Investigators are disbanded by Dark Society, try to avoid it while wandering and will not report suspicions to nobles of dark empires

-Vampires on AI now drink

-Boosted visibility of hostile units on map screen, increasing hosility border graphic and making them visible above location and name tags

-Nobles' fear of dark agents now occurs based on how close they are to the evil action, not globally. Gives highest threat estimation at the evidence location, then decreasing amounts in the nearby connected nodes

-Moving towards a more unified and complete hint system

-Only allow a single seeker

-Investigators and agents now automatically instantly go after seekers once they discover the truth

-Seekers can access libraries for twice the secret rewards to speed things up

-Plague doctors buffed, temporarily, with rework planned to allow interaction with disease mechanics

-Files to load now displayed in chronological order

-Expanded event messages a little bit

-Dark Heirophants can sacrifice broken nobles to gain power and refill enthrallment uses