Support specifying connection configuration through queries of the connection uri

Now you can specify connection configurations through the connection URI queries. For example hbase+zk://zkserver:2181/hbase?zookeeper.session.timeout=15000 By introducing the zookeeper.session.timeout=15000 query in the URI, you can override the existing configuration value for zookeeper.session.timeout in the Configuration instance you used when calling ConnectionFactory.createConnection or createAsyncConnection.