[QoL] Weapon switching bind

[SwiftShader]

Add a simple command handler to allow players to create their own weapon switching bindings to make Q/E and scrolling through the weapon list a thing of the past.

When I tried out playing as a police officer, I noticed that it's pretty painful to switch to a specific weapon unlike in other games where you can create your own keyboard bindings.

The little code snippet below makes it possible.

Lua implementation code

addCommandHandler("weaponslot",
    function (_, slot)
        slot = tonumber(slot)

        if slot ~= nil and slot >= 0 and slot <= 12 then
            setPedWeaponSlot(localPlayer, slot)
        end
    end
)

Player binding examples
These bindings would bind meele to 1, pistol to 2 and rifle to 3.

bind 1 weaponslot 1
bind 2 weaponslot 2
bind 3 weaponslot 5

You can look up the weapon slots here: setPedWeaponSlot

[Tut]

While not exactly the same, you can easily switch between weapons using the /switchweapon keybind but admittedly your method seems less of a pain to use.

Edit: that command was removed. I've updated the commands thread to reflect this

[Scorpyo]

This is now done as per https://saesrpg.uk/topic/33845/introducing-saes-1-6-part-2?