More Minor Changes

Added cpp files for Item and Character (the header files were getting
too big).  Started editing the equip function to only take items from
inventory.
Big Changes to Item Class

Changing item class to include a char variable that determines it's type
(gear or healing).  I've changed other functions to reflect this change.
Will add more later today.
Made UseItem function

Added stuff to the useItem() function.
Merged Character/Item Changes to Controller