added option to include the raw JSON #464
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I found no option to "pipe" the raw JSON through Pig, i.e., to filter the JSON with Pig based on its content but then output the original JSON. Using JsonStorage does not work, since it does not fully support nested structures. The same is true for LzoJsonStorage. Therefore, I added an option which adds the raw JSON to the returned tuple such that the first tuple can be used for processing with Pig and the second tuple can be stored.