Sadler Gorge 1.2

This update fixes the missing materials on the map's vegetation, the missing orbit camera for the bridge, and the missing backfaces on the bridge abutments. It also fixes the AI in the "Motorcade" scenario and adds a new car, and includes two new scenarios: "Hollywood Crash" and "Hollywood Stunt."

This version adds guardrails to the bridge, plus two scenarios and some minor lighting fixes.