Real ignition

Here's a small modification intended to make starting the machines a bit more realistic.

Function:
- A short press of the engine start button switches on the ignition.
- A long press (1 second) of the engine start button starts the engine.

-When the ignition and engine are off, no lights can be switched on, except for the hazard warning lights.
-When the engine or ignition is switched off, all lights (except hazard warning lights) switch off.

The idea came to me because I usually play with a controller and therefore couldn't easily use the ignition lock function that was included in the collector's edition.

I am always open to suggestions or any errors that may have been found.