Implement ResourceTiming event instrumentation for browser

[martinkuba]

This should be a new instrumentation package. The instrumentation should use only the Events API as a dependency for generating the event.

The event semantic conventions are drafted here (and part of open-telemetry/semantic-conventions#838).

[yoshihiro-shu]

I'm interested in this issue and would like to work on it if no one else has started yet.
Could you please assign it to me, or confirm it's okay to start drafting a PR?

[martinkuba]

@yoshihiro-shu That sounds great! I have assigned it to you. FYI, there is an old PR to add this instrumentation here, but since it's been a while I think you are free to take it (/cc @scheler). Also, the instrumentation should use the logs api instead of the (now deprecated) events api.

[yoshihiro-shu]

@martinkuba
Thanks a lot! 😊
I'll review the old PR and check the logs api approach.
Once I dig in, I'd love to discuss the implementation direction with you. Looking forward to collaborating!