Support ECMA support due Angular 10 shows warnings

[philipp-bananaware]

NB: Before opening a feature request against this repo, consider whether the feature should/could be implemented in the other OpenTelemetry client libraries. If so, please open an issue on opentelemetry-specification first.

Is your feature request related to a problem? Please describe.

With upgrading my project to Angular 10.0.0 this dependency shows a warning:

WARNING in {project}\node_modules\@azure\storage-blob\dist-esm\src\BlobServiceClient.js depends on @opentelemetry/api. CommonJS or AMD dependencies can cause optimization bailouts. For more info see: https://angular.io/guide/build#configuring-commonjs-dependencies

Describe the solution you'd like

No warning is shown.

Describe alternatives you've considered

My alternative would be to put this into the allowedCommonJsDependencies section of angular.json.

Additional context

Find more information about it here:
https://angular.io/guide/build#configuring-commonjs-dependencies

[xirzec]

The request here would be to ship a ESM version of the lib, e.g. using the "module" entrypoint in package.json. This would allow bundlers who support ESM to not need to ingest CommonJS code.

[xirzec]

@t2t2 This didn't seem to fix the problem for @opentelemetry/api?