Create cluster verification test

[mikewalch]

The test should perform the following steps:

1. Using Spark, initialize Fluo & Accumulo table 1 with dataset A
2. Using Fluo, incrementally add dataset B to Fluo table 1 which will export results to Accumulo table 1
3. Using Spark, initialize Fluo & Accumulo table 2 with dataset A+B
4. Verify that the Accumulo and Fluo tables 1 & 2 match