Added Frontier 25th anniversary Stegosaurus Vivid Variant skin

Rebalanced large feeder costs

Greetings park owners!This month Frontier Developments turned 25 years old and to celebrate we set you a spiky challenge! Your mission was simple: to release 25,000 Stegosauruses into your parks, collectively as a community. We've been checking the numbers, carefully monitoring your parks, and we can now reveal that...You succeeded! A grand total of 295,514 Stegosaurus were set loose on the Las Cinco Muertes! This is an amazing achievement and, as a result, everyone has unlocked the Vivid Stegosaurus skin! The skin will be added to your game once you have updated to Update 1.6.2, of which you can see the Release Notes below.