Created expandInportOutportIdx function updates block.inportIdxs and block.outportIdxs such that for input and outport arrays, has a pointer to each scalar.  This function is called immediately after the BFS.  Redundant method in combinePK has been removed.
Created expandInportOutportIdx function updates block.inportIdxs and block.outportIdxs such that for input and outport arrays, has a pointer to each scalar.  This function is called immediately after the BFS.  Redundant method in combinePK has been removed.

MPC-Berkeley/BLOM,MPC-Berkeley/BLOM,MPC-Berkeley/BLOM