Provide the codebase of plugin tests. Make the plugin test in the CI loop.

* Support grpc exporter.

* Support scope(all) metric export and finish document.

* Close exporter even in local debug env. And fix CI.

* Remove the system.out

* Fix absent 4.

* Support subscription from remote.

* Add the doc

* Update application.yml

* Add 3 cases for existed indicators.

* Add Pxx indicator.

* Support All in trace analysis listener.

* Fix CI and add P99/95/90/75/50 to source ALL.

* Use annotation to instead of definition file.

* Sample operator code.

* Indicator aggregator framework.

* Provide some annotation for OAL.

* Remote module.

* Register service.

* Add apache license header.

* Ignore comments when load definition files.

* #1206

1. Support list data type attribute in streaming data.
2. Support multiple service names in segment duration index.

* Fixed the conflict.

* #1206

Add TODO description to notify linjiaqi.

* #1206

Remove @NotNull

Fix IPMC checks for releasing.