Add google/vim-codefmt to the db

[David Barnett]

Could you please add the following plugin to the index?

• codefmt: git://github.com/google/vim-codefmt (author: David Barnett)

[David Barnett]

BTW, is filing requests like this a good approach to update the db, or should we figure something else out? My last request (#107) took a month to get handled and I wasn't sure if it was just a matter of folks being out for holidays or if a pull request would have gotten attention sooner.

I'm excited about VAM and vim-pi and the future of vim plugin management, but ironically the licensing makes it feel "locked down" for me and makes it hard for me to get others I work with excited about it when it's awkward to get first-class support for our plugins.

[ZyX_I]

Add codefmt Vim plugin

Fixes #111

→ <<cset 08ec862c246a>>