[abbrev] Added abbreviation for augroup.vim

Change-Id: I7efce97754240970e96952cf9cd76f21f316dc1c
[mapping] Removed highlight settings

Change-Id: If30b5502f76a20ed404cc66b439f9b8f5655eb86
[autocmd] Added hightlight setting for C, C++, Python

Change-Id: I89c24bb5a517db5ce3af8f013e6cc7d73d6c02b9