construct the partition and keeps track of what should still be embed
according to specified policies
rebuild the slice with the same procedure of when it was generated using the same data
only consider the first partitionSize vNodes and all its links
get the list of nodes and links to subtract from residual slice
generate a partition object and stores it in the rib
this constructor should be used if the policies are given
to the node by the CAD configuration file --- fully distributed architecture
without slice manager (controller)