Skeleton Inventory System

Creates In game inventory via file input to vectors.

Current Item Categories and Data Members: (Inherited Classes of Item
class)
- Weapon: int damage,
-Consumables: int HPgain,
-Armors: int percentReduction,

Note for Input Files:
1st Column = Item Name (class Item)
2nd Column = Item Weight (class Item)
3rd Column  and etc = data members of inherited classes ( ie damage for
class Weapons)