Find needs to have a way to get streaming results

[gammazero]

Need an option to ask for streaming find results, if the indexer being asked supports it.

[masih]

I think it makes sense to do this by default. The HTTP Accept header supports specifying both non-streaming and streaming content type, and let the server return streaming wherever it is supported.
The client would then read the Content-Type header to see what the server returned.

The rationale for enabling this by default is much faster lookup, specially for CIDs that have a lot of providers, as well as the ability to set limit on the number of providers found.

For debugging, we can then have flags to override the Accept header sent from the CLI to be something explicit.