* Add batch_try to utility pallet * lint * rename utility.batch_try -> utility.force_batch * Remove un-needed index field for utility.ItemFailed event * Remove indexes of utility,BatchCompletedWithErrors * Apply suggestions from code review Co-authored-by: Louis Merlin <hello@louismerl.in> Co-authored-by: Louis Merlin <hello@louismerl.in> Co-authored-by: Bastian Köcher <info@kchr.de>