vim Google style format

https://github.com/google/vim-codefmt

https://github.com/rhysd/vim-clang-format

http://pre.tir.tw/008/blog/output/vim-shi-yong-google-c-coding-style-pai-ban.html

https://clang.llvm.org/docs/ClangFormatStyleOptions.html

http://zh-google-styleguide.readthedocs.io/en/latest/google-cpp-styleguide/magic/

http://blog.csdn.net/fengbingchun/article/details/47341765

http://harttle.land/2018/01/06/cpplint-config.html

https://github.com/google/styleguide/tree/gh-pages/cpplint