Geo2Grid working directories were being deleted to make room for Polar2Grid tests, but I need to see those results when there are failures. This creates subdirectories for each set of tests.
coverage: 85.288% (-0.003%) from 85.291% when pulling 0c778162ae4dba892525e20f15af998ca7fbf470 on djhoese:bugfix-inttest-workdir into 8c22c78bdbee93f5652035f9688514121153acfa on ssec:main.
Geo2Grid working directories were being deleted to make room for Polar2Grid tests, but I need to see those results when there are failures. This creates subdirectories for each set of tests.