Add field_mappings to organizations download endpoints

apiserver/schema/services/organization.conf

@@ -1,5 +1,38 @@
 _description: "This service provides organization level operations"
-
+_definitions {
+    value_mapping {
+        type: object
+        required: [key, value]
+        properties {
+            key {
+                description: Original value
+                type: object
+            }
+            value {
+                description: Translated value
+                type: object
+            }
+        }
+    }
+    field_mapping {
+        type: object
+        required: [field]
+        properties {
+            field {
+                description: The source field name as specified in the only_fields
+                type: string
+            }
+            name {
+                description: The column name in the exported csv file
+                type: string
+            }
+            values {
+                type: array
+                items { "$ref": "#/definitions/value_mapping"}
+            }
+        }
+    }
+}
 get_tags {
     "2.8" {
         description: "Get all the user and system tags used for the company tasks and models"
@@ -202,7 +235,7 @@ prepare_download_for_get_all {
         description: Prepares download from get_all_ex parameters
         request {
             type: object
-            required: [ entity_type,  only_fields]
+            required: [ entity_type,  only_fields, field_mappings]
             properties {
                 only_fields {
                     description: "List of task field names (nesting is supported using '.', e.g. execution.model_labels). If provided, this list defines the query's projection (only these fields will be returned for each result entry)"
@@ -227,6 +260,11 @@ prepare_download_for_get_all {
                         model
                     ]
                 }
+                field_mappings {
+                    description: The name and value mappings for the exported fields. The fields that are not in the mappings will not be exported
+                    type: array
+                    items { "$ref": "#/definitions/field_mapping"}
+                }
             }
         }
         response {