Hadoop InputFormat - IO Transform for reads

We should build a IO read transform that will read data from services supporting the Hadoop InputFormat interface [1]

This will make it easy to connect to a variety of databases while still providing some aspects of scalability since the InputFormat interface provides for parallel reading.

[1] https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/mapred/InputFormat.html