Breast Feeding doesn't work unless we add CS module

[RoryWatts]

    {
      "risk factor": "NC_mstRFBreastFeedingCS",
      "baseline_coverage": 0.05,
      "target_coverage": 0.95,
      "scaling_start_index": 1,
      "scaling_stop_index": 3,
      "levels": [1,2,3,4]
    }