E3SM-2-1 Registration for CMIP6 (source_id)

Registration:
https://github.com/WCRP-CMIP/CMIP6_CVs/issues/1218
Metadata definition:
https://github.com/E3SM-Project/CMIP6-Metadata/tree/master/E3SM-2-1
source_id registration of E3SM-2-1

        "E3SM-2-1":{
            "activity_participation":[
                "CMIP"
            ],
            "cohort":[
                "Registered"
            ],
            "institution_id":[
                "E3SM-Project"
            ],
            "label":"E3SM 2.1",
            "label_extended":"E3SM 2.1 (Energy Exascale Earth System Model)",
            "license_info":{
                "exceptions_contact":"@llnl.gov <- e3sm-data-support",
                "history":"2024-01-30: initially published under CC BY 4.0",
                "id":"CC BY 4.0",
                "license":"Creative Commons Attribution 4.0 International (CC BY 4.0; https://creativecommons.org/licenses/by/4.0/)",
                "source_specific_info":"",
                "url":"https://creativecommons.org/licenses/by/4.0/"
            },
            "model_component":{
                "aerosol":{
                    "description":"MAM4 w/ new resuspension, marine organics, secondary organics, and dust (atmos physics grid)",
                    "native_nominal_resolution":"100 km"
                },
                "atmos":{
                    "description":"EAM (E3SMv2.1, cubed sphere spectral-element; 5400 els., 30x30 per cube face. Dynamics: degree 3 (p=3) polynomials within each spectral els., 112 km ave. resolution. Physics: 2x2 finite volume cells within each spectral els., 1.5 degree (168 km) average grid spacing; 72 vertical layers w/ top at 60 km)",
                    "native_nominal_resolution":"100 km"
                },
                "atmosChem":{
                    "description":"Troposphere specified oxidants (except passive ozone with the lower boundary sink) for aerosols. Stratosphere linearized interactive ozone (LINOZ v2) (atmos physics grid)",
                    "native_nominal_resolution":"100 km"
                },
                "land":{
                    "description":"ELM (E3SMv2.1, atmos physics grid, satellite phenology mode), MOSART (E3SMv2.1, 0.5 deg lat/lon grid)",
                    "native_nominal_resolution":"100 km"
                },
                "landIce":{
                    "description":"none",
                    "native_nominal_resolution":"none"
                },
                "ocean":{
                    "description":"MPAS-Ocean (E3SMv2.1, EC30to60E2r2 unstructured SVTs mesh with 236853 cells and 719506 edges, variable resolution 60 km to 30 km; 60 levels; top grid cell 0-10 m)",
                    "native_nominal_resolution":"50 km"
                },
                "ocnBgchem":{
                    "description":"none",
                    "native_nominal_resolution":"none"
                },
                "seaIce":{
                    "description":"MPAS-Seaice (E3SMv2.1, MPAS-Ocean grid; 5 ice categories, 7 ice layers, 5 snow layers)",
                    "native_nominal_resolution":"50 km"
                }
            },
            "release_year":"2024",
            "source_id":"E3SM-2-1"
        },