feat(extra-natives/five): implement [GET/SET]_GLOBAL_PASSENGER_MASS_MULTIPLIER

[Explooosion-code]

Goal of this PR

Adding a getter and setter to control the mass of passengers. I.E if you have a racing server you might want to have passengers not decrease performance of vehicle and you might want to

 SetGlobalPassengerMassMultiplier(0.0)

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How is this PR achieving the goal

By setting/getting the value that GTA is using for decreasing performance of vehicle depending on passenger count

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This PR applies to the following area(s)

Fivem, Extra Natives

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Successfully tested on

Game builds: 1604, 2060, 2189, 3095, 3258

Platforms: Windows

Checklist

• [x] Code compiles and has been tested successfully.
• [x] Code explains itself well and/or is documented.
• [x] My commit message explains what the changes do and what they are for.
• [x] No extra compilation warnings are added by these changes.

[qalle-git]

yes, please

[prikolium-cfx]

Hi. Can you please rename natives to SET/GET_GLOBAL_PASSENGER_MASS_MULTIPLIER and also you need to reset it on disconnect from the server in OnKillNetwork to its default value. You can check how our custom natives work now.

[prikolium-cfx]

Rebased and merged.