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

* Cluster module implementation finished.

* 1. Add the performance collection point.
2. Report formatter.

#1032

* Add a new cache implementation by caffeine.

#1032

* Performance optimization:
Make all the loggers class variable to have the static modifier.

* Time stamp format to time bucket performance optimization.

#1032

2. Report formatter.

#1032

1. Success: send to analytic worker
2. Failure: write into file.