Extend this to create a main object which will run 'cls' (a benchmark).
This class encompasses an attempt to create a fast sequential focal mean operation, using whatever tricks we can to eke out some speed.
Extend this to create an actual benchmarking class.
Result: Array.fill is really slow and should not be used
Reading the same raster as a .tif (with GeoTools) and as an ARG with GeoTrellis