Item, Inventory, and Sanity System Implemented and Operational

List of Consumable Items:

- Almond Water (large sanity increase)
- Candy Bar (small sanity increase)
- Strawberry Milk (infinite stamina + small sanity increase)
- Coffee (speed boost + small sanity increase)
- Liquid Pain (causes pain \:) )

Level 0:

- Changed lighting system
- Increased performance by 10-20% due to changed lighting

Level 2:

- Smilers now fade upon death

Level 5:

- You can now leave the computer UI without inserting the password
- Boiler Room loading zone fixed