The graphViz creator should be moved to sos-scheduler and should use interfaces for the dataSources

Current Situation

The graphviz diagrams show in JOE are created by graphviz. The .dot file is generated by the JSJobChain class located in the JobScheduler model. Also the command line tool to create pdfs from job chains is located in the JobSchedulerModel package

Desired Behaviour

• The Generator should be moved to the project sos-scheduler.
• The command line tool JSObjects2GraphvizMain should be moved to * com.sos.graphviz.main.JSObjects2GraphvizMain
• The generator should make use of Interfaces and DataSources to have * the option to call the generator with data sources coming from the inventory database.