Add jedis commands into original jedis source

• fpwrite

• fpscan

• metakeys

• Build ADDB(Redis+RocksDB), configure and run redis-server
• Install maven for Java

mvn clean install

• fpwrite - command that set key-value when call "INSERT" statement in relation database(SparkSQL) parameter: CommandArgsObject(datakey, partitionInfo, #ofColumn, indexInfo, data) return: reply

• fpscan - command that get key-value pairs when call "SELECT" statement in relation database(SparkSQL) parameter: CommandArgsObject(datakey, required column indices) return: List

• metakeys - command that get partition key filtering improper partition based on "WHERE" clause parameter: Filter string return: Set