Added more tests, fixed others

.directory

Makefile

...h/cortexM3_stm32f2/common/interfaces-impl/portability.cpp

...ortexM3_stm32f2/common/interfaces-impl/portability_impl.h

miosix/interfaces/portability.h

miosix/kernel/SystemMap.cpp

miosix/kernel/SystemMap.h

miosix/kernel/process.cpp

miosix/testsuite/testsuite.cpp

miosix/testsuite/testsuite_file/main.c

miosix/testsuite/testsuite_file1.h

miosix/testsuite/testsuite_file1/main.c

miosix/testsuite/testsuite_file1/prog3.h

miosix/testsuite/testsuite_file1/test.txt

miosix/testsuite/testsuite_file2.h

miosix/testsuite/testsuite_file2/main.c

miosix/testsuite/testsuite_file2/prog3.h

miosix/testsuite/testsuite_file2/test.txt

miosix/testsuite/testsuite_simple/main.c

miosix/testsuite/testsuite_syscall/main.c