refactor(testdrive): provice choice for ending test drive behavior

[solareon]

Description

Allows user to define the test drive behavior per dealership and moves dealership configuration descriptions to types.lua

Options for test drive include nothing, return which destroys the vehicle and brings the player back and destroy which leaves the player where they are and destroys the vehicle

Checklist

• I have personally loaded this code into an updated Qbox project and checked all of its functionality.
• My pull request fits the contribution guidelines & code conventions.