Add C384mx025_3DVarAOWCDA yamls (#2625)

Adds the C384mx025_3DVarAOWCDA yaml files for one experiment into a new GFSv17 folder.

ci/cases/gfsv17/C384mx025_3DVarAOWCDA.yaml

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+experiment:
+  system: gfs
+  mode: cycled
+
+arguments:
+  pslot: {{ 'pslot' | getenv }}
+  app: S2S
+  resdetatmos: 384
+  resdetocean: 0.25
+  nens: 0
+  gfs_cyc: 4
+  start: cold
+  comroot: {{ 'RUNTESTS' | getenv }}/COMROOT
+  expdir: {{ 'RUNTESTS' | getenv }}/EXPDIR
+  idate: 2021063000
+  edate: 2021070306
+  icsdir: /scratch1/NCEPDEV/climate/Jessica.Meixner/cycling/IC_2021063000_V2
+  yaml: {{ HOMEgfs }}/ci/cases/gfsv17/ocnanal.yaml

ci/cases/gfsv17/ocnanal.yaml

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+defaults:
+  !INC {{ HOMEgfs }}/parm/config/gfs/yaml/defaults.yaml
+
+base:
+  DOIAU: "YES"
+  DO_JEDIATMVAR: "NO"
+  DO_JEDIATMENS: "NO"
+  DO_JEDIOCNVAR: "YES"
+  DO_JEDISNOWDA: "NO"
+  DO_MERGENSST: "NO"
+  DOHYBVAR: "NO"
+  DO_FIT2OBS: "YES"
+  DO_VERFOZN: "YES"
+  DO_VERFRAD: "YES"
+  DO_VRFY_OCEANDA: "NO"
+  FHMAX_GFS: 240
+
+ocnanal:
+  SOCA_INPUT_FIX_DIR: /scratch2/NCEPDEV/ocean/Guillaume.Vernieres/data/static/1440x1080x75/soca
+  CASE_ANL: 'C24'
+  SOCA_OBS_LIST: {{ HOMEgfs }}/sorc/gdas.cd/parm/soca/obs/obs_list.yaml
+  SOCA_NINNER: 100
+  SABER_BLOCKS_YAML: ''
+  NICAS_RESOL: 1
+  NICAS_GRID_SIZE: 15000
+
+prepoceanobs:
+  SOCA_OBS_LIST: {{ HOMEgfs }}/sorc/gdas.cd/parm/soca/obs/obs_list.yaml 
+  OBSPREP_YAML: {{ HOMEgfs }}/sorc/gdas.cd/parm/soca/obsprep/obsprep_config.yaml
+  DMPDIR: /scratch1/NCEPDEV/da/common/