created test_case and cpp
first test passed, had problem compiling because clang c++11 alias was not working (needed to source it)
first failure, with 2 to Roman
2 to Roman passed
3 to Roman fail
3 to Roman pass
after 3 refactoring
after 3 refactoring fix fail
4 to Rom fail
4 to Rom pass
6 to Rom fail
6 to Rom pass
6 to Rom refactor
6 to Rom refactor FIXED == 5 to > 5
6 to Rom refactor FIXED > 5 to >= 5
7 to Rom for free