Support for Retrieving Full Device Configuration via Generated Batch File Command

NetBrain currently relies on a single consolidated command to retrieve full device configuration for supported models. For devices that do not offer such a command but instead can generate a batch file containing the complete configuration, there is no supported way to retrieve and parse that file through NetBrain. This enhancement would allow NetBrain to issue a command that triggers generation of a configuration batch file on the device and then retrieve that file for use in configuration checks and analysis. Supporting this retrieval method would extend certification coverage to device models that lack a single consolidated show command, giving customers consistent configuration visibility across a wider range of hardware.