Incorrect Wrapper Implementations

Generic issue to list any incorrect wrapper implementations (on the develop branch).

Currently known:

curator_selected() returns std::vector<object> but the actual sqf command returns an array of the form: [[objects],[groups],[waypoints],[markers]]
add_curator_editable_object() should be add_curator_editable_objects()
squad_params returns nested arrays of strings, but __convert_to_strings_vector is called directly on the return instead of on the nested arrays
~~get/set_unit_loadout() using wrong data~~

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