Custom/Random License Plates

- Able to either customize (single or multiple plates per track) or just randomize the plate.fsh for any race

- 2 different versions: V1 only randomizes on track switch and V2 randomizes after every race

- If there are no plate.fsh modes installed, the game just uses the original one

Thanks to Herms and Zalcus20 for testing

Especially thanks to Herms for collecting all the nice MCO plates into single plate.fsh files

And thanks to people like Zacabeb and others for creating some nice license plates years/decades ago