Cargo - Add name to bodybags

[BrettMayson]

When merged this pull request will:

• Add support for labels on cargo items ace_cargo_label
• Add labels to bodybags with the unit name
  

[PabstMirror]

This is great, I remember someone having an issue with multiple cargo boxes and not having any way to tell the difference between them.

https://github.com/acemod/ACE3/blob/master/docs/wiki/framework/cargo-framework.md

### 4.7 Adding labels to a mission's cargo objects (Added in ACE3 3.14.0)

You can add labels to loadable cargo objects by using `setVariable`:

//```
this setVariable ["ace_cargo_label", "Crayons"]
//```

[jonpas]

How does this differ from #8023?

[BrettMayson]

It differs because I was unaware of that one

[jonpas]

I am in favour of #8023 but would like to see bodybag name added to it.

[BrettMayson]

If #8023 is merged I can create a PR to add bodybag labels

[PabstMirror]

Updated to master (changed setVar name)

[PabstMirror]

I guess we could check if dogtags is loaded and use it's var if it exists, it would save a global setVar, but probably not needed

https://github.com/acemod/ACE3/blob/master/addons/dogtags/XEH_postInit.sqf#L40

[jonpas]

I think this is fine. For the rare case, people can still hide the name with something like this:

["ace_placedInBodyBag", {
    [{
        params ["", "_bodyBag"];
        _bodyBag setVariable ["ace_cargo_customName", "", true];
    }, _this] call CBA_fnc_execNextFrame;
}] call CBA_fnc_addEventHandler;