* Remove unused extraClientSpans() method
* Merge extraAttributes() and hasClientSpanHttpAttributes(uri) into
httpAttributes(uri): this will allow to choose extracted attributes
per URI (for example, OkHttp won't set flavor on connection exception
once it's rewritten to Instrumenter)
* Refactor TypeInstrumentation#transformers() method part 1
Add TypeInstrumentation and its implementations
* Refactor TypeInstrumentation#transformers() method part 2
Use the new method in all existing TypeInstrumentation implementations
* Drift
* Spotless
Co-authored-by: Trask Stalnaker <trask.stalnaker@gmail.com>
Lauri Tulmin
Mateusz Rzeszutek
Trask Stalnaker
Jakub Wach