Analyse relation between EB and WMS

In the last PIs some analysis was don on how Workload Management Systems, comparing existing production options in the astronomy world, and in other fields. At the same time, in this PI a reference implementation of the Execution Broker (EB) is expected to be created. The combination of those two efforts, gives us the opportunity to create a simple view which shows how those two elements could work together in an SRCNet, which informs the project about the potential architecture for batch processing.