(Umbrella) Yarn support as a long-running application

Yarn is a widely used cluster management system in Hadoop. We need to support Yarn. Roughly, there may be two approaches to support Yarn. The first approach is running the system as a long-running application in Yarn. In this approach, Tajo runs as a long-running application, and Yarn client launches a Tajo cluster and request the cluster resources to RM. The another approach is let the scheduler of Tajo to directly communicate RM.

In this issue, we will let Tajo to support the first approach. This is an umbrella issue to track all issues about it.