Tells this vertex to strictly co locate its subtasks with the subtasks of the given vertex.
Strict co-location implies that the n'th subtask of this vertex will run on the same parallel computing
instance (TaskManager) as the n'th subtask of the given vertex.
NOTE: Co-location is only possible between vertices in a slot sharing group.
NOTE: This vertex must (transitively) depend on the vertex to be co-located with. That means that the
respective vertex must be a (transitive) input of this vertex.