DSS v7 files do not create .dsc files

[eheisman]

dssrip functions that access pathnames depend on generating the .dsc file created by the DSS libraries to quickly return a list of paths in the file. This file does not exist for DSS v7 files causing functions like getPaths and getAllPaths to fail.

[eheisman]

Action to resolve this is to replace with much older logic to parse Java Array returned by $getCatalogedPathnames()

[tungttnguyen]

Did not know about this. Thanks for working on this!