Checkmk Werk 12818: AWS Lambda: added check for monitoring AWS Lambda performance

ID: 12818 Title: AWS Lambda: added check for monitoring AWS Lambda performance Component: Checks & agents Level: 1 Class: New feature Version: 2.1.0i1 A checkplugin was added which monitors the following AWS Lambda metrics: * Duration * Errors * Invocations * Throttles * iterator age (available only for stream based invocations) * dead letter errors (available only for asynchronous executions)