Added money

We need to optimise this (take out of update method).
fixed 2 items being able to equip
Unequip working
Right click equip updated
added an action to the currency
Creating gfx for the split items
Working on stack split manager code
Split now working
Just saving
Added the Item storage starting items
Optimized GUI toggle function.
Just a small change to the starting items
Small update for the Drag colliders
Merge branch 'Marks-Branch'