Adds an object (usually a clonk) to the crew of a player. The object must have the CrewMember property set in the DefCore.
Returns 1 if the object was added successfully.
var nclnk = CreateObject(CLNK, 0, 0, GetOwner());
MakeCrewMember(nclnk, GetOwner());
This script creates a new clonk and adds it to the crew list of the owner.