Add "Gameshark" Cheats to the Cheat Menu and enhance existing codes and menu

[MasterPhW]

Now that we have a decompilation of Perfect Dark, I'd love to see some of the classic GameShark cheats ported to the in-game cheats menu, like the moon jump, use all weapons outside of the firing range or the Walk Through Walls/no Collision codes. I hope, that with the understanding of the inner workings of the game, it should be way easier (is it?) to port some of them as "real" cheats.

Collected some links: https://gameshark.fandom.com/wiki/Codes:Perfect_Dark https://www.neoseeker.com/perfect-dark/gameshark/n64/ https://www.valice.net/gameshark/01_main.html (I could create a little list, if it helps, with all codes)

Additionally, it would be fantastic to upgrade the cheat menu with some additional infos and of course some of these cheats to take advantage of our modern PCs, which can handle much more chaos than the old N64. For instance, it would be great if all Single Player weapon/ammo cheats could also be used in Co-Op Mode.

This would add a whole new level of fun and replayability to the game!

[FrostKnight]

This idea sounds very awesome. I love it.