Bettereliminatesubparams

[GFDL-Eric]

Eliminates the subparams part of the field_table.yaml. Now, any field with associated methods will have those as a subsection of the yaml. Example output:

    - variable: omphil
      longname: omphil tracer
      units: mmr
      profile_type:
      - value: fixed
        surface_value: 1.0e-32
      convection: all
      chem_param:
      - value: aerosol
        frac_pm1: 0.89
        frac_pm25: 0.96
        frac_pm10: 1.0 
      dry_deposition:
      - value: wind_driven
        surfr: 100.0
      wet_deposition:
      - value: aerosol_below
        frac_incloud: 0.2 
        frac_incloud_uw: 0.3 
        frac_incloud_donner: 0.3 
        frac_incloud_snow: 0.0 
        alphar: 0.001
        alphas: 0.001
      radiative_param:
      - value: online
        name_in_rad_mod: omphilic
        name_in_clim_mod: organic_carbon

[GFDL-Eric]

Note that this will not work without a heavy rewrite of fm_yaml.F90 and potentially the yaml_parser itself. Additional changes to field_manager.F90 may also be required (tbd).

[uramirez8707]

This is replaced with #52