Updated Speeder Bike

Updated the speeder bike at https://eggman28.itch.io/flight-sim-star-wars-ships/devlog/287355/updated-speeder-bike

Awesome speeder bike model from https://sketchfab.com/3d-models/starwars-speeder-bike-free-download-1d0ea6fe43c1405b8d4b17722e166f6e

Scout Trooper model from https://sketchfab.com/3d-models/imperial-scout-trooper-battlefront-ii-73faef28d3564801ab6c4daa51256fcc

Added some custom sounds.