JPSSnagg

Restored code from revision 419 that was partially removed by reverse merge in revision 420 for using environment variable MAX_GRANULES_NAGG environment variable to reduce or increase the number of granules allowed to be processed. Also, for processing all the granules at once it is necessary to reset the granules_selected limit as well as the granule_info limit.
Removed the "Finished Printing Granules" line at the end of nagg_print_granules() and also removed the line from 4 expected results files.

All tests pass, including extensive tests.