Fixed description in item pop up.
Changed food's onUse to test need satisfaction, it now adds the food value to the current need value.
Added a method to just add a value instead of having to set by getting the current and adding a value to it as it makes a long line of code which could be done much shorter inside the need itself.
Added food need as testing for eating food.
Todo: justTouched also causes when opening a gui if there is a component on top, it's onTouch is also activated. Maybe enable the new gui later?