When merged this pull request will:

• Fixes Vehicles will only cook off once #8736.
• Fixes Ace advanced vehicle damage / cookoff creates smoke pillar in wrong location #8683 by placing the smoke pillar on the engine selection.
• To start vehicle or ammo box cook-offs, an event has to be run on the server.
• Same goes for ammo cook-offs.
• Made all effects JIP compatible (exception are the jet and ring effects, as they only last 20 seconds max).
• Removed tiny explosion effects that were present in the smoke when an ammo box is cooking off, as it looks excessive when machine gun ammo is detonating. If projectiles are created during cook-off, they will ensure that such effects occur, but in a more suited manner to the cook-off happening.
• Ammo boxes can now cook-off from incendiary rounds (incendiary definition comes from vehicle_damage).
• Attached the cook-off sound to the vehicle, so that it moves with the vehicle.
• Cook-off sound is deleted when the vehicle is deleted.
• CBA settings have been reworked:
  • GVAR(enable) has been removed.
    • This setting was too ambiguous in my opinion. 3 separate settings exist (GVAR(enableFire), GVAR(enableAmmoCookoff) & GVAR(enableAmmobox)) that allow to control most aspects that GVAR(enable) does, making it redundant.
    • With the current system, if players dismount the vehicle that is going to cook off fast enough, the vehicle won't cook off. Checking for players within a vehicle is therefore pointless in my eyes.
    • This change means that setting QGVAR(enable) on objects will no longer affect ammo detonation, but only fire effects. QGVAR(enableAmmoCookoff) already exists and can be set in the editor, although that's currently not listed in the docs - that has been rectified.
  • GVAR(enableFire) is now the sole setting that handles vehicle cook-off fire. This setting does not handle ammo detonation (handled by GVAR(enableAmmoCookoff)).
  • Added a duration coefficient setting GVAR(cookoffDuration) for cook-off (fixes Cook off bug - vehicle never explodes, and cook off flame occurs multiple times. #9743).
  • GVAR(probabilityCoef) has been made useful again. It's only used in the advanced vehicle damage component.
  • Moved GVAR(removeAmmoDuringCookoff) from vehicle_damage into cookoff.
    Changed it so that it removes all magazines upon ammunition cook-off.
• Code cleanup.

SP and MP testing has been conducted, but could use some more.

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