HIVE-5260 : Introduce HivePassThroughOutputFormat that allows Hive to use general purpose OutputFormats instead of HiveOutputFormats in StorageHandlers (Viraj Bhat via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/branch-0.12@1523168 13f79535-47bb-0310-9956-ffa450edef68