[FEATURE]Adding Observability Catalog

[YANG-DB]

Is your feature request related to a problem?

I would like to be able to use Observability catalog which includes the Traces, Metrics & Logs signals as they are defined by the OpenTelemetry protocol.

As an Observability user, I'd like to be able to load the catalog into my index / mapping / data-stream namespaces and start ingesting data in the OTEL format.

What solution would you like?

Having a catalog repository & API which allows me to load the domain schema from and query the catalog repository for information on my schema support .

Having a loading mechanism that would allow me to easily bootstrap my environment to start ingesting the OpenTelemetry signals using existing Observability collectors

Allow me the knowledge of relationships between my catalog entities for the purpose of Correlation between data type to identify issues in my applications

What alternatives have you considered?

None

Do you have any additional context?

• https://opentelemetry.io/docs/concepts/signals/traces/
• https://opentelemetry.io/docs/concepts/signals/metrics/
• https://opentelemetry.io/docs/concepts/signals/logs/
• [Feature request] Add field mapping correlation type metadata concept  OpenSearch#7082