P0-A9: Part 843: Story Generator, Multiplayer Testing

I have spent some time working on some improvements to the character selection system. The goal was to prepare the system for the addition of dynamic content. In future, I intend to have randomised stories being generated for players as they explore the world.

I have also been working on the Character selector and multiplayer testing. I have created a new GUI that allows users to login to the server, and specify a port and IP address. I have also added proper password verification on the server, and improved the graphics options dialog slightly.

I have tested the server connection from an external IP, and the client and server work fine.

The framerate in the (debug) build is also quite good, although a lot of optimisation is needed.