General: Support freeroam/freecam spectator mode

We can probably use the built-in debug modes the game has, but the controls are really unintuitive, so we should probably change how it works a little. 

Have a look at how racman enables the debug options: https://github.com/MichaelRelaxen/racman/blob/master/RaCTrainer/offsets/rac1.cs#L507C48-L507C48