In this problem, you will implement back and forward button, and history functionality for a web browser tab. The browser tab allows a user to visit websites sequentially. After each visit, the user may perform a back or forward operation until such an operation is possible. The back button takes the user back to the previous visited website, and forward button invalidates the back operation and takes the user to the page they visited before selecting the back operation. E.g., the user has already visited the following websites: i. www.google.com ii. www.google.com/search?source=hp&q=hello iii. www.google.com/search?source=hp&q=spartans iv. www.google.com/search?source=hp&q=sjsu At this point, the current page is www.google.com/search?source=hp&q=sjsu. Now, a back operation takes the user back to www.google.com/search?source=hp&q=spartans. Another back operation takes the user back to www.google.com/search?source=hp&q=hello. Now, a forward operation takes the user to www.google.com/search?source=hp&q=spartans. Another forward operation takes the user back to www.google.com/search?source=hp&q=sjsu. At this point, no more forward operations are possible. You are provided two files BrowserTab.h and main.cpp. BrowserTab.h consists of the declaration of the browser class. main.cpp consists of test cases and expected behavior of the program. An important operation you will need to support is the ability to print all the operations performed (the history of all pages visited, backs and forwards). You may choose to store this information in an array or a linked list. You may not use any STL data structures or other libraries to store the history. You will need to create a file called BrowserTab.cpp, in which you will implement the functions declared in BrowserTab.h that supports the operations provided in main.cpp. Implement back and forward operations using stacks. You may use the STL stack, or your own implementation of stacks. For bonus points, implement a Browser class consisting of a list of browser tabs by implementing the functions defined in Browser.h that is provided to you. You may choose to change the data structure used to store the browser tabs. Uncomment the last try catch block in main.cpp to test your code. In a file called Browser.pdf, include your ideas on the algorithm and implementation. Also include all your sources in this file.