JDK dependency specification in puppet manifest should be configurable

Hadoop module in puppet manifest requires "jdk" package which means Oracle JDK on RedHat/CentOS.Required package name of JDK should be configurable for using other JDKs such as OpenJDK.

In addition, only hadoop module currently requires jdk package, zookeeper also should require it. I met a situation that zookeeper is running on OpenJDK but hadoop running on Oracle JDK after puppet deployment. Because zookeeper package is installed prior to hadoop package, zookeeper service is possible to be configured and started before jdk installation.