Proposal: proto for stream "presets"

[Ostrzyciel]

Follow-up of Jelly-RDF/jelly-jvm#250

That issue, in short, proposes to create an "autotuner" that would automatically determine the optimal settings for a Jelly stream, including those beyond what's present in RdfStreamOptions.

It may make sense to save the result of such analysis in a proto. This could be useful in scenarios like the following:

A lightweight IoT device is producing some RDF data. The more powerful server can analyze the data and determine that there is a more optimal way to encode the same data. We could tell the IoT device to use these more optimal settings instead.

The same could be done in an offline manner. If we have a sample of the data that will be transmitted, we can analyze it and save the settings preset to the IoT device for later use.

Open issue: what would actually be in this preset?

[Ostrzyciel]

There could also be a gRPC service that would take an input stream and respond with a preset that would be most appropriate for this data. It would be nice if the service also accepted some additional information about the intended channel – see: Jelly-RDF/jelly-jvm#250 (comment)

[Ostrzyciel]

This could also include the contents of a pre-shared dictionary, if needed in that use case. See: #36