Add new-material submission: Co2F2I2

submissions/osc_sub_CoFI_WiktorMatuszek.json

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+{"author": "WiktorMatuszek", "material_id": "2CoFI-1", "osc_id": "OSC-02924", "formula": "Co2F2I2", "method_name": "Organizer-equal QE (pw.x scf/nscf, PSLibrary PAW) + published A_d lookup", "provisional_score": 32.8, "track": "open", "note": "New material outside the active challenge set."}