PHP Doc Block Models and Resource Models to have return types

[brideo]

Example:

 * Class Collection
 *
 * @method \Brideo\Example\Model\ResourceModel\HelloWorld getResource()
 *
 * @package Brideo\Example\Model\ResourceModel\HelloWorld
 */
class Collection extends AbstractCollection```


This applies to:

* Collections: `getResource()`
* Models: `_getResource()`