Use of usernames for unique IDs

[Haroon-Khel]

On the client side, the plan is to prompt the user to input a username upon connecting for the first time. This will then be read by the server.

Ideas:
When the thread is started, before entering the while loop, read the first input line.

[Haroon-Khel]

Added a username feature.
Users must enter a username when starting their clients, in order to proceed to the chat stage.
Thread on server side waits for the first message to be sent from the client; the first message will be the username, and then jumps into the while loop to receive subsequent messages.