Added Renaming and Renamed events

Closes #78

src/Models/Events/Renamed.php

@@ -0,0 +1,8 @@
+<?php
+
+namespace LdapRecord\Models\Events;
+
+class Renamed extends Event
+{
+    //
+}

src/Models/Events/Renaming.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace LdapRecord\Models\Events;
+
+use LdapRecord\Models\Model;
+
+class Renaming extends Event
+{
+    /**
+     * The models RDN.
+     *
+     * @var string
+     */
+    protected $rdn;
+
+    /**
+     * The models new parent DN.
+     *
+     * @var string
+     */
+    protected $newParentDn;
+
+    /**
+     * Constructor.
+     *
+     * @param Model  $model
+     * @param string $rdn
+     * @param string $newParentDn
+     */
+    public function __construct(Model $model, $rdn, $newParentDn)
+    {
+        parent::__construct($model);
+
+        $this->rdn = $rdn;
+        $this->newParentDn = $newParentDn;
+    }
+
+    /**
+     * Get the models RDN.
+     *
+     * @return string
+     */
+    public function getRdn()
+    {
+        return $this->rdn;
+    }
+
+    /**
+     * Get the models parent DN.
+     *
+     * @return string
+     */
+    public function getNewParentDn()
+    {
+        return $this->newParentDn;
+    }
+}

src/Models/Model.php

@@ -5,6 +5,8 @@
 use ArrayAccess;
 use JsonSerializable;
 use LdapRecord\Container;
+use LdapRecord\Models\Events\Renamed;
+use LdapRecord\Models\Events\Renaming;
 use LdapRecord\Utilities;
 use LdapRecord\Connection;
 use InvalidArgumentException;
@@ -1200,12 +1202,16 @@ public function rename($rdn, $newParentDn = null, $deleteOldRdn = true)
             $newParentDn = $this->getParentDn($this->dn);
         }
 
+        $this->fireModelEvent(new Renaming($this, $rdn, $newParentDn));
+
         if ($this->newQuery()->rename($this->dn, $rdn, $newParentDn, $deleteOldRdn)) {
             // If the model was successfully renamed, we will set
             // its new DN so any further updates to the model
             // can be performed without any issues.
             $this->dn = implode(',', [$rdn, $newParentDn]);
 
+            $this->fireModelEvent(new Renamed($this));
+
             return true;
         }