TomDooley's Pete 579 Enhanced for ATS v1.5 Update

Some features:
- BETA 80-inch high roof & mid-roof cabins w/ longer chassis and selection of side skirts
- cabin inner lights (sleepers only)
- added "r_grill" attachment point (compatible to Aradeth's parts like horns and lights) and some sample roof slot arrangements. Intentionally left open for use on any cabin - it's your problem if you put attachments where they float, clip or just don't fit. Also includes a roofbar.
- added and/or modified some bullbars
- Fixed set of five rooftop marker lights, taken from the stock W900. For sleepers.
- Carrier APU/Aux Air-Conditioner on dedicated slot, mounted on right chassis side behind the tanks, adapted from Viper's 389 (sleepers only)
- "Beacon" mount point, compatible to Aradeth/Ohaha's parts from the VNL
- Exhausts for sleepers: Short Double Caliber (shorter pipes, fits better behind the standup sleeeper), outward-angled rear and side stacks modified from Pendragon models
- Selection of Viper's 389 fenders adapted for the 579 (quarter/half/full fenders for sleepers)
- Neon effect under chassis (sleepers)
- more side skirt options, with or without actual plastic skirts
- Chrome or illuminated (white) Peterbilt logos for the radiator grill, adapted from Viper's 389
- Side blinkers, for sleepers only
- Sideflares for sleepers: models with cleft for side exhausts (one by Shin2044, one by me), longer continuous sideflare panels (replacement), double-row sideflare (under cabin and under sideskirt)
- Rear-left toolbox (by Viper) or steps for the no-plastic sideskirts
- window deflectors
- additional horn adaptors (1.4)
- rack mount for 76-inch sleepers