- The new VQE mode in TNQVM (used by exatn visitor) use the IR util to decompose the composite array into ansatz + sub-circuits.
The util created new names for those sub-circuits which makes it incompatible w/ the mapping mechanism in the HPC decorator. Hence, fixed accordingly.

- Also, in the case where the number of MPI processes less than the number of requested QPU's, passes MPI_COMM_WORLD to the the QPU to prevent double initialization.

Signed-off-by: Thien Nguyen <nguyentm@ornl.gov>