Nanosaur 1.4.2

• Full rewrite of the 3D renderer. Fixes performance on Apple Silicon and other systems (Issue #8).
• Keyboard inputs can now be remapped (Issue #2).
• Basic gamepad support.
• Switching between Extreme and Easy modes is now performed in the game's settings screen (Issue #9, thanks @shpface).
• New options in game settings (music, ambient, debug title bar).
• Better fade in/out implementation.