Fellavision improvements — Stilt Fella Steam update #145171

Fellavision improvements: -The sun will now mostly be behind the player in this mode, casting your shadow in front of you, which makes it easier to keep your balance AND it looks cool. -"Look ahead by pressing Right Thumbstick / Spacebar"-prompt added. -Custom look ahead direction in some levels, like Highway and Backwards Land. -Moved AudioListener to first person camera for more realistic 3d sound. -Made sure shadows of hats and neckwear are visible. -Reduced Depth of Field blur. -The Space Octagon visual redesign and some other visual tweaks. Misc fixes: -Added translations for credits. -Big blue block sounds added. -Lowered start audio a bit. -Fixed missing medallions in end credits scene. -Added 1 secret hat.