Heavy Truck And Trailer Add-On For Hfg Project 3xx v2.6

Changelog v2.6
• Fixed frame issue with 330 flatbed
• Fixed hook location on transfer dump dolly
• Small changes to the dump chassis's and trailers
• Changes to the log chassis and trailer to be more prototypical.

Changelog v2.5
• Renamed the mod to better reflect what it is
• New OSW dump body chassis's
• New OSW transfer dump trailer
• New OSW dump pup trailer
• Added compatibility to all 357, 367, and 379 chassis's for the animated bumper swingplates from my parts pack that's available to HFG Patrons.
• New standalone dump cargoes that do not interfere with default cargoes or mods that use them
• Many def improvements and streamlinings
• A few texture fixes
• Some 1.39 compatibility fixes