Controller Binding Submenu

[NoelFB]

Need a submenu to rebind controls, but it's a bit complicated.

• Need to be able to clear controls
• Must not be allowed to back out of the menu until you either cancel changes, or confirm changes that are valid
• Certain combinations aren't valid (ex. Pause/Confirm/Cancel can't overlap, Menu Up/Down can't overlap, Menu Left/Right can't overlap, etc).
• Need to add input prompts for all possible button configurations (pull in all of Kenny's input prompts, look them up based on first binding).

[JoshuaMadd]

Am working on this. At the moment button prompts show the first assigned button or key (depending on input type). I also added an input item to Menu that shows the buttons assigned to a VirtualButton. (See images).

One weird thing I did notice is that Buttons.North turns into Buttons.Y for some reason and I'm not sure why. (See images)
I made the input prompt show up by naming the image Y.png.

I'm not sure how I will do the rebinding part though. I saw foster has FirstPressed() for keyboard, but I haven't found anything like that for controller. I'm also not sure how I should handle input for switch (NotFor and OnlyFor).

This is the fork: https://github.com/JoshuaMadd/Celeste64/tree/options-submenu-3
(Very much still wip, will clean and move a lot of stuff)