Support gRPC based storage write interface for Jaeger traces

[arajkumar]

Promscale already implements Jaeger gRPC remote storage Reader interface. The goal of this task to implement the Write interface, so that Jaeger collector can directly start writing the spans into the remote storage instead of relying on OTEL collector for transformation.

This would majorly help the existing jaeger deployments to make use of promscale's gRPC storage without deploying additional component(OTEL collector).

[paulfantom]

Relates to https://github.com/timescale/tobs/issues/436

[ramonguiu]

@paulfantom I'm not sure the issue you linked is related to this. That other issue seems to be about traces going through the OTel Collector and not being ingested why this issue implements a way to bypass the OpenTelemetry Collector for Jaeger users so they can directly ingest data from Jaeger.