* Add: Now findUnloadPosition support also cargo object
- use of ace_cargo_fnc_getSizeItem to determine size of item
- prefer the config way instead of manually set size
- This will also take into account object manually added to the cargo system with ace_cargo_fnc_setsize
- use the cargo object for ace_cargo_fnc_unloadItem.
* FIX: old work around
* FIX: error when cargo module is not loaded
* As suggested by @orbis2358
This fix handle the case when cargo module is not loaded for scheduled and unscheduled environnement.
* Use ACE framework to check if module is present
* FIX: EFUNC and isEqualto
- _itemSize here is always number
- here we are in common module (addons/common/functions/fnc_findUnloadPosition) so FUNC is ace_common_fnc
* FIX case where config value is `-1`
- if the config value is -1, get the `ace_cargo_size` from the `ace_cargo_fnc_getSizeItem
-
https://github.com/acemod/ACE3/issues/6357#issuecomment-393525374
