Torts — Immunity — Workers’ compensation — Injuries on jobsite — Record did not support trial court’s finding that negligence claim was one between two subcontractors in horizontal privity and that, as such, defendants were entitled to workers’ compensation immunity from plaintiff’s claim for injuries sustained when employee of entity with whom property owner contracted for surveying work at development site backed truck into plaintiff, an employee of a separate entity that owner hired to perform road work at development site — Statute creates horizontal privity only when a contractor sublets any part or parts of his or her contract work to a subcontractor or subcontractors — Entity developing the project for itself as the owner, and not under a contract with any third party, could not be considered a “contractor” that was “subletting” work