* Make Jaeger receiver works in 12450 as default.
* Finish compile and codebase.
* Make codes runnable.
* Finish Jaeger query tests.
* Add document for jaeger receiver.
* Add readme.
* Fix a break link.
* Finish doc.
* Move all receiver proto files together, in case the class conflict in gogoproto.
* Add jaeger proto and its dependency proto. Also license provided.
* Fix rat.