Rework spectator script

[JayFoxRox]

The script is really horrible. We should probably ditch it or rework it a lot.

For stunting it would be cool to be able to temporarily say: /spectate <id> (or using the hotkey) if you want to see where someone currently is, while you are also spawned.

Ideally we'd also fix that the spectator is lagging behind when watching cars, but I'm not sure if this is possible.

I don't think there's any major benefit to how the script currently works (which is a half-assed spectator mode for non-spawned players), at least not if those lag-bugs in vehicles exist and if we primarily support freeroam / stunting. The spectator script currently also doesn't work with the auto_class.nut script.

[dracc]

F1 + direction keys (as currently implemented), is that an acceptable "solution"?

All spectator logic seems to be done in the VC-MP client - not an exposed possibility for us to fix.