* Add submenu with vehicles to cargo load menu
* replace private ARRAY with keyword
* fix ace function macro using
* filter vehicles without cargo
* add Load condition, clean params, fix param reusing
* replace nearEntities with nearestObjects, add macro
* optimize, del magic, replace count with forEach
* del unused functions
* del useless _this parameter
Allows cargo objects to be added via classname and reduces simulation/synchronization overhead. Objects become physical upon unloading and cannot be re-made virtual, only scripts can add such virtual objects.
Also separates the player feedback from the loading/unloading code and adds a progress bar.