Add a script that starts/stops a local hbase server

This subtask is to make it easy for user to run s2graph with a default hbase server, without need to download and configure the binary and HDFS, etc.

Since hbase-server is included as one of the library dependencies, it should be straightforward to add a script that is similar to start-hbase.sh and stop-hbase.sh that is in the binary HBase distribution.

The server should be configured to run on local filesystem as opposed to an HDFS. By default the local hbase server stores data in a temporary directory, and it should be configured to a subdirectory in the package, such as /var.