add TMWDCParameterLoader. please add its config in your yaml file ref #741

config example)
  - name: mwdc_prm
    type: art::TMWDCParameterLoader
    parameter:
      - name: ParameterList
        value:
          - ["mwdc1","path/to/mwdc1/geometry.yaml"]
          - ["mwdc2","path/to/mwdc2/geometry.yaml"]