Improved Exhaust Effects

Improves the exhaust smoke effects of motorized vehicles: - Darkens the smoke with vehicles without AdBlue (except for electric and methane powered vehicles) - The amount of smoke varies depending on the engine temperature - Motor load also influences exhaust smoke intensity - Enhanced effect when starting the engine Note: All effects (except the darker smoke) applies to all vehicles with exhaust effects, no matter if they are using AdBlue or not ___________________________________________________________ CHANGELOG: v1.2.0: - NEW: Motor load now also influences exhaust smoke density - NEW: Now works with vehicles that have multiple exhaust effects - FIX: Adjusted smoke density factors for better visual effect - FIX: Resolved an issue where some vehicle types caused script errors (e.g. electric vehicles) v1.1.0: - FIX: Corrected the motor start event causing thick white smoke (or no smoke) after the engine got warm - FIX: Exhaust smoke should no longer be solid white in certain conditions (especially an issue in multiplayer)