JPSSnagg

testnagg.sh
	Added tests for ig strict and -g yes using geofile with non-matching name.
test/testfiles/ICSST_npp...h5
test/testfiles/GCRIO_npp...h5
	product and geo file with name that doesn't match the product file's attribute for testing -g strict and yes.
nagg_write_granules.c
nagg_get_granules.c
	made small changes to address const and unsigned integer warnings.