Hotfix to address additional issues found with the Road Train trailer:

• Fixed front axle collapsing
• Added missing shock to dolly
• Fixed dolly mesh placement again, it was attached to the trailer box instead of the axles

• Fixed missing texture
• Fixed Road Train dolly mesh placement
• Fixed dragging nodes on Road Train / B-Train versions
• Fixed parser errors and warnings
• Added GUIDs (Each version has its own GUID, if this proves to be an issue when skinning let us know)