added more extension + fixed regex for include statement

[uohmak4fvpqe]

I added more c++ extensions that can be found. I personnally always use .cc and .hh (they are really used, it's not only me)

I also fixed the regex for inlusion statement to allow for no space between "#include" and the quoted filename (I personnaly hate useless space, but that's syntactically ok anyway)