[JaegerExporter] ExporterConfig needs to be exported since it is API

[BryanHunt]

Please answer these questions before submitting a bug report.

What version of OpenTelemetry are you using?

0.10.2

What version of Node are you using?

14.8.0

What did you do?

import { ExporterConfig } from '@opentelemetry/exporter-jaeger';
If possible, provide a recipe for reproducing the error.
import { ExporterConfig } from '@opentelemetry/exporter-jaeger';

What did you expect to see?

No errors

What did you see instead?

Module '"../node_modules/@opentelemetry/exporter-jaeger/build/src"' has no exported member 'ExporterConfig'.

Additional context

None
Add any other context about the problem here.

The JaegerExporter constructor requires the type ExporterConfig which is not exported from the module. It should be exported since it is part of the API.

[dyladan]

Quick note. Since we actually have a package called API, we typically try to stay away from calling anything API that isn't specifically related to that package to avoid confusion. "public interface" might be a little less ambiguous. In any case, you're correct and it should be exported.

[shivkanya9146]

I would like to work on this, please assign to me