Prototyping (again) a new arcade car controller | GODOT 4 

I decided to redo a new arcade car controller to see if I could get better results and also to see if I could do it in less than 600 lines of code with a little optimization (I didn't succeed in the second one condition because to do it, you have to scatter the code between the different elements, which I don't really like to do)
I took the opportunity to try to improve my shader language, the boost mesh is totally procedural with the use of noise texture