ATS - Cummins QSK19 Engine Pack V1.1

This simple engine pack adds the Cummins QSK19 engine to the game, using the stock sound effects.
The QSK19 is an industrial engine related to the 1970s-vintage Cummins KT. It's available in 525, 600, 700 and 800hp derivatives with between 1775lbf ft to 2275lbf ft.

It's available for the following stock trucks:
Kenworth W900
Kenworth T680
Peterbilt 579
Peterbilt 389
Western Star 49X
Western Star 57X
Western Star 5700XE
International 9900i Eagle
International LoneStar
Volvo VNL

And the following mod trucks, where I'm using the stock International 9900i engine sound effects:
International HX520
Scot A2HD

Update: 21 Mar
Added support for the Western Star 5700XE and Western Star 57X.

Tested on ATS 1.46-1.47

Authors: davidsteele1975