Ability to send a segment of the file to the Ni-Fi workflow/pipeline

Ability to send a segment of the file to the Ni-Fi workflow/pipeline, Collect the result from the Ni-Fi workflow/pipeline and edit the viewport results.

Perform the inverse operation to send the edited data back through the Ni-Fi pipeline before committing the data segment.

Apache Ni-Fi workflow/pipeline includes the ability to encrypt/decrypt, compress/decompress and encode/decode among many other things.

Need to break this issue down into smaller work items.

No files, tests, or entry points are named. First break the proposal into smaller work items covering segment selection, Ni-Fi execution and result collection, viewport updates, and the inverse pre-commit flow; define a separate completion criterion for each before locating implementation points.

Written by the indexing model from the issue text.