### C$++$ Programming Project: Engineering Inventory Management System

$**$Problem Statement:$**$

Create an inventory management system for an engineering workshop. This system will be used to track

various tools and parts. The project should apply object$-$oriented programming principles including

inheritance, arrays, and vectors, without using pointers or complex constructs. The program should

include func$$onality to add, display, update, and evaluate items in the inventory using a menu$-$driven

interface.

$**$Project Requirements:$**$

$1.**$Base Class and Derived Classes$**$:

$-$ Implement a base class $`$InventoryItem$`$ with a$$ributes:

$-`$string itemName$`($name of the item$)$

$-`$int itemID$`($unique iden$$fier$)$

$-`$int quan$$ty$`($number of items in stock$)$

$-`$double pricePerUnit$`($price of each item$)$

$-$ Include a constructor and member func$$ons for ini$$alizing and displaying item details.

$-$ Create derived classes:

$-`$Tool$`$: add an a$$ribute $`$string toolType$`($e$.$g$.,$ "Hand tool", "Power tool"$).$

$-`$Part$`$: add an a$$ribute $`$string partCategory$`($e$.$g$.,$ "Mechanical", "Electrical"$).$

$2.**$Member Func$$ons$**$:

$-$ Implement virtual func$$ons for displaying detailed informa$$on in $`$Tool$`$ and $`$Part$`.$

$-$ Add func$$ons to update quan$$es and calculate the total value of items in stock.

$3.**$Main Program$**$:

$-$ Use a $`$vector$`$ of $`$InventoryItem$`$ objects $($no pointers$)$