Improvements for graphical Job Chains view

Current Situation

The graphical view for job chains in the Configuration view of JOC Cockpit provides a number of basic opeations. Other important functions are not avaliable

Desired Behavior

The graphical view for job chains should be enhanced.

Meaningful functionalities:

• Call "Edit Order" directly from the graph
• Call "Edit File Order Source" directly from the graph
• Call "Edit Node Parameters" directly from the graph
• Indicate that node parameters are defined
• Indicate that return code settings are defined

Enhancements

• When browsing for jobs and select some from the tree there should be a line after the last job
• When "Show Error Node" is disabled it should remain disabled for all graphs until it is enabled again and vice a versa.
• It should be possible to drag and drop a job/order/fileOrderSource from the graph from pos1 to pos2