Complete fuzz testing coverage for 2.1

[westonpace]

We need to make sure that we have fuzz testing for all 16 permutations of:

Miniblock (small value) / Full zip (large value)
Has Lists / No Lists
Has FSL / No FSL
Fixed width inner type / Variable width inner type

The only combinations we don't need to test thoroughly at the moment is those that have both FSL and Lists (we don't yet fully support this case and might not as part of 2.1 beta)