Edit substance archive with SBSARManager

With PySBS 2021.0 it’s possible to edit a substance archive file (.sbsar).

Use SBSARManager with the with statement:

sbsar = sbsarchive.SBSArchive(context.Context(), "archive.sbsar")
sbsar.parseDoc()
with sbsar.enterSBSARManager() as edit:
    edit.addIcon("aGraphIdentifier", "thumbnail.png", replaceIfExists=True)
    edit.save()