Add "Auto Homologation" feature in Private Multiplayer

Me and my club would love to have race nights in private multiplayer where we select a certain group of cars. However, the PI and Power To Weight ratios vary greatly within a specific group. It would be great if there was a feature in the event set-up section to have the cars automatically apply upgrades to balance the PI between the cars. The same as it does in the Spec Series. This prevents people from going for all out power tunes and makes it easier to ensure there is a level playing field.