Smart Client version information available from cluster

As part of the support process we typically capture logs using cbcollect_info. For any support issue involving the clients we have to ask which version of the SDK is in use which adds a delay to the process. It would be useful if the SDK could supply this information to the cluster as some form of signature as part of its initial connection. Then we would need a method for extracting this information from the cluster as part of the cbcollect_info process.