Problem
Create a class for a simple blog. The owner of the blog should be able to (a) post a new message, (b) numerically list and display all messages, and (c) select a specific message and delete it. Viewers of the blog should only be able to numerically list and display all posted messages. Create a class Viewer and a class Owner that uses inheritance to help implement the blog functionality. Store the data messages using any format you like (a vector of type string may be easiest). A menu function should be implemented for each class that outputs the legal choices for the type of user. To test your classes, the main function of the program should allow the user to invoke the menus from the Viewer and Owner objects.