New tutorial, reworked parkour mechanics, parkour practice level, and much more

The new tutorial is a linear style tutorial with informational text that appears at the bottom of the screen. The wall-running mechanics have been reworked to be easier to use and feel smoother. For the time trial level in the single-player component, I raised the walls to allow for easier wall-running and fixed the bug where loot boxes spawn in the walls. The parkour level gives you the chance to practice all of the mechanics while giving you access to all of the weapons and the opportunity to practice your aim by shooting at monsters. The bug fixes are mostly minor, while there are a few major. For the new menu screen, you'll have to load in to see it for yourself, its nothing too exciting.