AggregateErrors aggregate errors into ErrorList and filter nil, if no error found, return nil.

IsCRDNotExists check if error is crd not exists.

IsCuePathNotFound checks if the error is cue path not found error.

IsLabelConflict checks if the error is Label Conflict error.

LabelConflict defines the conflict label error string.

ManagedResourceHasNoDataError identifies error caused by no data in maanged resource.

ErrorList wraps a list of errors, it also fit for an Error interface.