Villainous Difficulty Multipliers

Adds a par­a­site that infects play­ers and oth­er crea­tures, grad­u­al­ly tak­ing con­trol over their organ­ism. Inspired by the Velona­ceps Calyx par­a­site from Baro­trau­ma with unique genet­ic sys­tem and infec­tion mechanics.