Big Data: A simple code to make things easy to aggregate a scalding typedpipe

• Naming the aggregated result as an AttributeValue
• Getting a primary key, and associated List[AttributeValue] as the final output of aggregation: AggregatedData
• Pivoting the Aggregated Data based on attribute and its value in AttributeValue
• Ordering for a product, that represents an instance of data
• Flattening the composed aggregations using shapeless flatten etc