Add low-level hook for SDL3 input events

[Ivan1pl]

Resolves #2864

[gemini-code-assist]

Code Review

This pull request introduces the SdlEventListener interface to allow custom listeners to receive raw SDL events, and updates SdlJoystickInput, SdlKeyInput, and SdlMouseInput to implement it. LwjglWindow is updated to manage these listeners and dispatch events. The feedback suggests wrapping the custom listener event dispatch loop in a try-catch block to prevent any unhandled exceptions from interrupting the dispatching of events to subsequent listeners and internal input handlers.

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