WQ Divergent Segments Update (Workflow-Manager)

[dbsmith88]

Update the workflow manager to appropriately handle the new divergent segments info and possible data request.

When creating the task node for the simulation, after creating the primary dependency tasks, check for divergent segments.
if divergent segment: check if dependency task for parallel segment already exists, if not create one and add it to the existing dependency task list for the current segment, otherwise assign the existing task to the current segments dependency list.

Will need to update the primary dependency task creation step to first check the dictionary of already created dependency tasks, reuse existing task if available.