Move vim support to separate repository

[jam1garner]

I suggest this because it would then likely be better for supporting most vim plugin managers as then you'd only need to do, using plug as an example, the following:

call plug#begin('~/.vim/plugged')

Plug 'zetzit/zz.vim'

call plug#end()

(It's also a bit easier for anyone who wants to manually install it too)

[jwerle]

I am not opposed to this. What are your thoughts @aep ?

[aep]

yes this makes sense