Scania Openpipe V8 Crackle v11.5 1.40

Base sound by kapitan and small part from alexa sprint.

changelog:

1.modify startup and stop engine sound.

2.reduce volume of main engine.

3.modify idle engine sound.

compatible with many Scania trucks:

-SCS Scania R,

-Streamline, RJL "R and T", Scania P and G, Scania Megamod.

-This is NOT for the new gen Scania.

-Fred's Scania already have that update.