Allow turning off "piece handling"

[dd45e640b42e6da7da96faee3996ef7c]

Checklist

• [X] This is not a question or a support request. If you have any boost related questions, please ask in the discussion forum.
• [X] This is not a new feature request. If it is, please file a feature request instead.
• [X] I have searched on the issue tracker and the discussion forum, and there is no existing related issue or discussion.
• [X] I am running the Latest release, or the most recent RC(release canadiate) for the upcoming release or the dev branch(master), or have an issue updating to any of these.

Boost component

• [ ] boost daemon - storage providers
• [ ] boost client
• [ ] boost UI
• [ ] boost data-transfer
• [ ] boost index-provider
• [X] Other

Improvement Suggestion

no all use cases need the piece handling part of boost. it would be nice to be able to turn all that off completely.

simplifies the whole deal handling topic quite a bit i think