Rename plugins to libs and update all file references

libs/vendor/illuminate/contracts/Support/CanBeEscapedWhenCastToString.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Illuminate\Contracts\Support;
+
+interface CanBeEscapedWhenCastToString
+{
+    /**
+     * Indicate that the object's string representation should be escaped when __toString is invoked.
+     *
+     * @param  bool  $escape
+     * @return $this
+     */
+    public function escapeWhenCastingToString($escape = true);
+}