[Enhancement] Additional Vim syntax highlighting for C++ (including C++11/14)

[prajjwal1]

I have been using this for a long time, but support for C++ 14 from this repo may be included for better syntax highlighting !
http://github.com/octol/vim-cpp-enhanced-highlight
This repo contains additional syntax highlighting for C++11/14/17 . Compared to the standard syntax highlighting for C++ it adds highlighting of (user defined) functions and the containers and types in the standard library / boost.
It makes syntax highlighting better !