Achievements + better controller support

[Cany0udance]

Just in case there's an oversight that I missed that causes an achievement to not be unlocked when it should, the achievement statuses can easily be changed in the STSAchievements file, setting the relevant ones to true or false. For example:

"downfall:PICKPOCKET_100": "true"

Also, I posted the .psd for the achievement grid in the #general channel of the Downfall Discord server, for future editing:

https://discord.com/channels/669242017427226638/1201338161691901962/1262877733176873042