[plugin-http] should we handle timeout event ?

[OlivierAlbertini]

Is your feature request related to a problem? Please describe. For now, we don't handle timeout event. From NodeJS doc:

Setting the timeout option or using the setTimeout() function will not abort the request or do anything besides add a 'timeout' event.

If we listen to timeout event we could add span.addEvent in order to notifying people that event has occurred.

Describe alternatives you've considered

• Don't handle timeout event