Added ability to export hierarchy for a single file

[gcerik]

Updated the scanner to enable the -s option to export not just a single file but also all the child pages that are in the ordered pages.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[MaxMelcher]

merged it - sorry for the delay @gcerik. Thanks for the contribution, much appreciated!