Rename plugins to libs and update all file references

plugins/vendor/illuminate/contracts/Pipeline/Pipeline.php

@@ -1,40 +0,0 @@
-<?php
-
-namespace Illuminate\Contracts\Pipeline;
-
-use Closure;
-
-interface Pipeline
-{
-    /**
-     * Set the object being sent through the pipeline.
-     *
-     * @param  mixed  $passable
-     * @return $this
-     */
-    public function send($passable);
-
-    /**
-     * Set the array of pipes.
-     *
-     * @param  mixed  $pipes
-     * @return $this
-     */
-    public function through($pipes);
-
-    /**
-     * Set the method to call on the pipes.
-     *
-     * @param  string  $method
-     * @return $this
-     */
-    public function via($method);
-
-    /**
-     * Run the pipeline with a final destination callback.
-     *
-     * @param  \Closure  $destination
-     * @return mixed
-     */
-    public function then(Closure $destination);
-}