Upgrade to Dom4, add slither sneak, tweak balance

  *Gave Phoenix bonusspell 1 so that he can cast while attacking
  *Gave Felix earth gem production
  *Changed gem prod to add astral and drop 1 nature
  *Likespop lizards and fortera 3
  *Added damage types to everything
  *Added nostr to a lot of weapon, and weapon effects
  *Added AI tags to prevent sacred/chaff recruitment and slowrecruit the
  smokestacks
  *Added patience 3 to vile stalker, and patience 9 to Phoenix
  *Updated the Fear, Stealthy, and Resistance values for dom4
  *Updated sprite sheet