v0.5.0 - Polish game UX

• Alien text in level sacrifices translation fixed
• Buttons when left hand is primary hand fixed
• CVAR vr_trackingScale added
• Fix gun after changing primary hand
• Invert vehicle Y axis option added
• Leech recharge effect fixed
• Map Y button to throw a granade
• Motion sickness warning on level 2 loading screen
• Weapon effects switch into video settings added