Update 0.5.5 to balance and speed up the game

• Item "Toolbox" repair points reduced to 25

• Recicle items give "recicle metal" instead of "scrap metal"

• Balance the box needed to find items:

  • prev: 15 + (3 * times visit) up to 30

  • now: 5 + (1 * times visit) up to 10

• Balance the box needed to spawn enemies

  • prev: 15 - (3 * times visit) down to 5

  • now: 8 - (1 * times visit) down to 3