Adding getPendingFriendships as per documentation

Author: prawn185

src/Traits/Friendable.php

@@ -348,6 +348,17 @@ public function getMutualFriendsCount($other)
         return $this->getMutualFriendsQueryBuilder($other)->count();
     }
 
+    /**
+     * Get the number of pending friend requests
+     *
+     * @return integer
+     */
+    public function getPendingsCount($other)
+    {
+        
+        return $this->getPendingFriendships()->count();
+    }
+
     /**
      * This method will not return Friendship models
      * It will return the 'friends' models. ex: App\User