New map visuals + fire and explosion upgrades

CHANGELOG:

• Fire skill tree updated with new skills

• All Characters stats rebalanced

• Harvesting skill tree balance changes (now gives better rewards)

• Drenskov's character skill made stronger (now starts from night 3)

• Map price info now always displayed on map piece

• Map unlock ui changed

• Resource icon added above harvestable resources

• Additional rock destruction models

• Totems added - totems can be found in map and they provide various skill boosts (demo limited)

• Sawed-off shotgun bullets spread increased

• Gatling gun clip bullets reduced

• The gatling gun overheat mechanic removed

• Gatling gun model updated

• World effects added(wind trails, falling leaves, fog)

• Game prepare screen ui visuals improved

• Windmill sound added

• Guns sounds improved

• Light radiation skill range increased

• Tutorial improved