Correct the hierarchy of ensemble members in ROTDIR

[aerorahul]

Description
When the atmos component level was added to the ensemble directory structure, it was added "above" the ensemble member. As a result, the enkfgdas.$PDY/$cyc directory structure looks as follows:

└── enkfgdas.20211220
    └── 18
        └── atmos
            ├── mem001
            │   ├── INPUT
            │   └── RESTART
            └── mem002

When the coupled model components for wave, ocean, ice, chem etc. are added, this directory tree will need to be converted to look as follows:

└── enkfgdas.20211220
    └── 18
        ├── mem001
        │   ├── atmos
        │   │   ├── INPUT
        │   │   └── RESTART
        │   ├── chem
        │   ├── ice
        │   ├── ocean
        │   │   └── INPUT
        │   └── wave
        └── mem002

This will allow collecting all components for any ensemble member easily.

This will require work in many scripts within the global-workflow as this information is baked in.

Requirements

• Update the COMROT structure to be consistent between the deterministic member and the ensemble members.
• Update the scripts in the global-workflow to use the data from the updated COMROT structure.

Acceptance Criteria (Definition of Done)

• Current cycled ATM configuration should work in the hybrid and 3DVar cases
• Current forecast only configuration should work for apps ATM and S2SWA