Fix headlights

Mugetsuga's Fixed Vehicle Lights

On some vehicles, when the light was turned on, there was light from the headlights, but the headlight itself did not light up. This mod fixes this bug.

Correction:

- BF-400 (bf400.dff);
- Combine Harvester (combine.dff);
- HPV-1000 (copbike.dff);
- Ranger (copcarru.dff);
- Faggio (faggio.dff);
- FCR-900 (fcr900.dff);
- Freeway (freeway.dff);
- Freight Flat (freiflat.dff);
- Freight (freight.dff);
- Kart (kart.dff);
- NRG-500 (nrg500.dff);
- PCJ-600 (pcj600.dff);
- Pizzaboy (pizzaboy.dff);
- Quadbike (quad.dff);
- Sanchez (sanchez.dff);
- Brown Streak (streak.dff);
- Brown Streak Wagon (streakc.dff);
- Tram (tram.dff);
- Wayfarer (wayfarer.dff).