SCHEMA-336. KijiResult wrapping an HBase Result

issue: https://jira.kiji.org/browse/SCHEMA-336
review: https://review.kiji.org/r/1687

review: https://review.kiji.org/r/1687
contributed-by: ajprax (Aaron Feldstein, afeldstein@wibidata.com)

review: https://review.kiji.org/r/1687
contributed-by: ajprax (Aaron Feldstein, afeldstein@wibidata.com)