API improvement: Make an SdlError type that implements Error

[jgcodes2020]

This breaks pretty much every function, but has the upside of playing nicer with the rest of the ecosystem, allowing SDL errors to be used as cause for other error types.

[revmischa]

Do you think this better belongs in this module or in sdl3-sys?

[Goldenbough44]

It seems some adaptation of this issue pulled into crate 0.13.0.

But I found some compilation errors when:

• when enabling hidapi feature
• some tests and examples

because some parts not updated from String to Error struct.