Add facade file, fixes Cyber-Duck#1

Author: Ben Speakman

src/Cyberduck/LaravelWpApi/Facades/WpApi.php

@@ -0,0 +1,9 @@
+<?php namespace Cyberduck\LaravelWpApi\Facades;
+
+use Illuminate\Support\Facades\Facade;
+
+class WpApi extends Facade {
+
+    protected static function getFacadeAccessor() { return 'wp-api'; }
+
+}