Introduce a CmsObject interface

This will be useful to decouple ComponentPartial and Asset objects from their Halcyon counterparts
An Asset is technically not a template, it may be hosted via a CDN or others
A ComponentPartial is also different, it is read only and doesn't require caching

modules/cms/contracts/CmsObject.php

@@ -0,0 +1,39 @@
+<?php namespace Cms\Contracts;
+
+interface CmsObject
+{
+
+    /**
+     * Loads the template.
+     *
+     * @param  string  $hostObj
+     * @param  string  $fileName
+     * @return mixed
+     */
+    public static function load($hostObj, $fileName);
+
+    /**
+     * Loads and caches the template.
+     *
+     * @param  string  $hostObj
+     * @param  string  $fileName
+     * @return mixed
+     */
+    public static function loadCached($hostObj, $fileName);
+
+    /**
+     * Returns the local file path to the template.
+     *
+     * @param  string  $fileName
+     * @return string
+     */
+    // public static function getFilePath($fileName = null);
+
+    /**
+     * Returns the Twig content string.
+     *
+     * @return string
+     */
+    public function getTwigContent();
+
+}

modules/cms/twig/Loader.php

@@ -2,7 +2,7 @@
 
 use Event;
 use Twig_LoaderInterface;
-use Cms\Classes\CmsObject;
+use Cms\Contracts\CmsObject;
 
 /**
  * This class implements a Twig template loader for the CMS.
@@ -19,7 +19,7 @@ class Loader implements Twig_LoaderInterface
 
     /**
      * Sets a CMS object to load the template from.
-     * @param \Cms\Classes\CmsObject $obj Specifies the CMS object.
+     * @param \Cms\Contracts\CmsObject $obj Specifies the CMS object.
      */
     public function setObject(CmsObject $obj)
     {