Rename plugins to libs and update all file references

libs/vendor/nesbot/carbon/src/Carbon/Exceptions/UnreachableException.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of the Carbon package.
+ *
+ * (c) Brian Nesbitt <brian@nesbot.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Carbon\Exceptions;
+
+use RuntimeException as BaseRuntimeException;
+
+class UnreachableException extends BaseRuntimeException implements RuntimeException
+{
+    //
+}