Bugfix/coupled crow (#49)

* bug fix, POSTGRB2TBL undefined

* clean up unused schema
move default value into defaults/

* move all default values into /defaults from /schema

It's better if we have one place to manage default values
for configurable variables other than two

Default values only for reference.

Please throughly test to make sure it could reproduce.

* bug fix: imp_physics="11" instead of 11
         default field table change to match current selection

* update sandbox environment to enable FIX_SCRUB settings.

* bug fix: label in fv3.yaml should be capital case. (GFS, GDAS, ENKF)

workflow/config/fv3.yaml

@@ -43,7 +43,7 @@ config_fv3:
     forecast_mode=$( echo "$1" | tr a-z A-Z )
 
     case $forecast_mode in
-        "gfs")    
+        "GFS")    
               echo "BEGIN: config.fv3 for $forecast_mode"
               export DELTIM={doc.fv3_gfs_settings.DELTIM}
               export layout_x={doc.fv3_gfs_settings.layout.x}
@@ -61,7 +61,7 @@ config_fv3:
               export WRTTASK_PER_GROUP_GFS={doc.fv3_gfs_settings.layout.WGRP_NTASKS}
               export WRTIOBUF={doc.fv3_gfs_settings.layout.WRTIOBUF}
               ;;
-        "gdas")
+        "GDAS")
               echo "BEGIN: config.fv3 for $forecast_mode"
               export DELTIM={doc.fv3_gdas_settings.DELTIM}
               export layout_x={doc.fv3_gdas_settings.layout.x}
@@ -78,7 +78,7 @@ config_fv3:
               export WRTTASK_PER_GROUP_GFS={doc.fv3_gdas_settings.layout.WGRP_NTASKS}
               export WRTIOBUF={doc.fv3_gdas_settings.layout.WRTIOBUF}
               ;;
-        "enkf")
+        "ENKF")
               echo "BEGIN: config.fv3 for $forecast_mode"
               export DELTIM={doc.fv3_enkf_settings.DELTIM}
               export layout_x={doc.fv3_enkf_settings.layout.x}