Implement Tajo Resource Manager

Implement our own resource manager and worker containers for the standby mode without YARN.

1. QueryWorker stated when cluster startup.
2. TajoClient requests query to TajoMaster.
3. TajoResourceManager assigns role QueryMaster to a QueryWorker.
4. TajoResourceManager assigns QueryWorkers for execution query.
5. TajoMaster requests query to QueryMaster.
6. TajoClient checks QueryStatus to TajoMaster.
7. TajoMaster reports QueryMaster’s host, port to TajoClient.
8. QueryMaster assigns QueryUnit to QeuryWorker.
9. TajoClient fetches result data from QueryMaster.