Feature/char8 t

minimum_tests

basic_tests

long_double_tests - DEFS=-m96bit-long-double

long_double_tests - DEFS=-DIUTEST_USE_QUADMATH=1 -mlong-double-64

long_double_tests - DEFS=-DIUTEST_USE_QUADMATH=1 -mlong-double-80

long_double_tests - DEFS=-DIUTEST_USE_QUADMATH=1 -mlong-double-128

scan-build

sample-run