This programming project allows you to demonstrate your basic knowledge of object-oriented programming and the use of text file input and output. you will use information read from one text file to create instances of a class named inventoryitem. next, you will read information from a second text file to update information about the quantities of these inventory items. finally, you will use the information in the list of inventoryitem objects you created and updated to prepare a report that is written to an output file showing the inventory quantities and their total values as well as the overall total value of all these inventory items. start by designing a class called inventoryitem. this class contains the following private data attributes: • item_number, a unique number used to identify each item • description, the text description of the item • quantity, the number of items in the inventory • unit_cost, the value of a single unit of this item in dollars and cents