Breakout Added

I've added my first "game 2", bringing the total number of games in this project to 3. With the addition of the new game, Breakout, I've updated the main menu slightly. Not much else to say about it all, though I should probably mention there's a good chance I'll come back to it later and make a few adjustments. 

Also, first time making a devlog on itch, so... neat.