adding more tests

.gitattributes

tests/simple/Makefile

tests/simple/banner_O3.exe

tests/simple/banner_nop.exe

tests/simple/banner_test.sh

tests/simple/cal_O3.exe

tests/simple/cal_nop.exe

tests/simple/cal_test.sh

tests/simple/dumbledore_cmd_O3.exe

tests/simple/dumbledore_cmd_nop.exe

tests/simple/dumbledore_test.sh

tests/simple/jack_tests/banner.c

tests/simple/jack_tests/cal.c

tests/simple/jack_tests/grep.c

tests/simple/jack_tests/k1.c

tests/simple/jack_tests/od.c