add failure_store enum to bulk responses (#3732)

Author: Anaethelion

output/schema/schema.json

@@ -48,6 +48,7 @@ export class ResponseItem {
    * The HTTP status code returned for the operation.
    */
   status: integer
+  failure_store?: FailureStoreStatus
   /**
    * Additional information about the failed operation.
    * The property is returned only for failed operations.
@@ -82,6 +83,13 @@ export class ResponseItem {
   get?: InlineGet<Dictionary<string, UserDefinedValue>>
 }
 
+export enum FailureStoreStatus {
+  not_applicable_or_unknown,
+  used,
+  not_enabled,
+  failed
+}
+
 export enum OperationType {
   index,
   create,