Context

Refines the Data streamer interface:

Renames to Root_hash_streamer. Root_hash_streamer manages the pub-sub connection and should live in the coordinator

Manually testing the MR

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For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
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Edited Feb 06, 2023 by Ryan Tan