Add graphics presets to the launcher (like in War Thunder)

So, I had to reinstall the game, and due to how default settings are set up, they caused CTD on login. Thankfully, Gaijin Support delivered and sent me a config file with low settings, so I could login and play the game (and actually post this, so much time passed (literally a week, RIP my streak), I got inactivity flagged). Anyway, it would be a useful feature, allowing low-end PCs to launch the game without problems, or to reset settings if they fumble something.