2. Add context help for every module to find another module’s context.

High performance agent, and the skeleton of modulization collector

Feature/266

Merge branch 'feature/high-performance-agent' of https://github.com/wu-sheng/sky-walking into feature/266

fix compile failed

fix enhance class match failed

Merge branch 'feature/high-performance-agent' of https://github.com/wu-sheng/sky-walking into feature/high-performance-agent

* 'feature/high-performance-agent' of https://github.com/wu-sheng/sky-walking:
  add configuration about multiple check interval and fix set peerID of  exit span failed
  independent data carrier project

add configuration and fix set peerID failed  

independent data carrier project

* byName
* byClassAnnotationMatch
* byMethodAnnotationMatch
* byHierarchyMatch

fix open-tracing meta info is not correct

#266

fix issue that local span transform failured

operation name or operation id need to reset 

fix issue that operation name and operation id are not correct

fix compile failure and the url  tag of motan plugin is not correct

fix issue that operation name and operation id is not correct when create multi exit span or entry span

#266

suport ot activation

support plugin testcase