Add new functions related to vehicle gears

[thealex-br]

Is your feature request related to a problem? Please describe.

several resources have attempted to address this issue, but many rely on inaccurate methods for limiting vehicle speed based on the current gear. Utilizing setVehicleCurrentGear and isVehicleAutomatic could effectively resolve these problems.

Describe the solution you'd like

bool setVehicleCurrentGear ( vehicle theVehicle, bool isManual )
bool isVehicleAutomatic ( vehicle theVehicle )

isManual toggles default gear changing

onClientVehicleGearChange ( lastGear, currGear )

onClientVehicleGearChange could be used with elementData to sync vehicle gear

Describe alternatives you've considered

No response

Additional context

No response

Security Policy

• I have read and understood the Security Policy and this issue is not about a cheat or security vulnerability.

[CarlRayanitch]

5 years is too limited, i agree that we should have a way to have 6+ gears especially if it's gonna be possible within 'Hedit'