PrintUtility forces us to allocate 2g heaps for unit tests

[drewfarris]

In the PrintUtility that is used to print Accumulo table contents in the context of several tests, there's a method named getPrintableValue that will attempt to decode an Accumulo Key and Value using different strategies that are common to Datawave table structures.

I was attempting to use PrintUtility in a new test related to #3173 and consistently encountered out of memory exceptions from L146 in getPrintableValue.

Upon investigation I observed that the HyperLogLogPlus class was falling back to the legacytDecode method. This was always allocating a large byte array because it was attempting to interpret a byte[] that wasn't an encoded hyper log log data structure. The size of the array was larger than 1G, but smaller than 2G.

I was able to work around this issue by increasing the heap size for unit tests from 1G to 2G as seen here. Not a showstopper, but could be worth looking into.