Add zsh-completions.plugin.zsh file for easy installation with oh-my-zsh

Clone zsh-completions to ~/.oh-my-zsh/custom/plugins, and add

    plugins+=zsh-completions

should be able to activate this as an oh-my-zsh plugin.

zsh-completions.plugin.zsh

@@ -0,0 +1,5 @@
+#!/usr/bin/env zsh
+
+fpath+="$(dirname $0)/src"
+
+compinit