Use driver-owned PIO settings for coupled Omega initialization

[grnydawn]

This PR makes Omega use driver-owned PIO settings for coupled initialization.

• Pass IOBaseTask and IORearranger from CIME through the Fortran/C++ interface
• Add IO::init(IOInitParams) while preserving configuration-based initialization for standalone runs
• Block IO.IOBaseTask and IO.IORearranger overrides in omega_buildnml
• Log the PIO settings used to initialize SCORPIO
• Add IO_INIT_PARAMS_TEST to verify driver-provided settings reach SCORPIO

Fix: #510

The following coupled test passed on PM-CPU, PM-GPU, and Chrysalis. Tests on Frontier and Aurora are still ongoing.

./create_newcase     \
    --case <casedir>     \
    --res T62_oQU240 \
    --compset COMEGA-IAF     \
    --driver mct    \
    --machine chrysalis     \
    --compiler intel  \
    --walltime 00:30:00  \
    --handle-preexisting-dirs r

Checklist

• Building

  • CMake build does not produce any new warnings from changes in this PR

• Testing
  chrysalis, gnu, openmpi

  • CTests Pass
  • E3SM-Coupled C-case Pass

  pm-cpu, gnu, mpich

  • CTests Pass
  • E3SM-Coupled C-case Pass

  pm-gpu, gnugpu, mpich

  • CTests Pass
  • E3SM-Coupled C-case Pass

• New tests:

  • CTest unit tests for new features have been added per the approved design.