ExtraSamples TAG moved to IFD0

ExtraSamples TAG was under the folder ExifIFD, so it was never fetched
on tested TIFFs.
Now with this class in the IFD0 directory this TAG is parsed.

lib/PHPExiftool/Driver/Tag/IFD0/ExtraSamples.php

@@ -0,0 +1,58 @@
+s file is part of PHPExifTool.
+ *
+ * (c) 2012 Romain Neutron <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace PHPExiftool\Driver\Tag\IFD0;
+
+use JMS\Serializer\Annotation\ExclusionPolicy;
+use PHPExiftool\Driver\AbstractTag;
+
+/**
+ * @ExclusionPolicy("all")
+ */
+class ExtraSamples extends AbstractTag
+{
+
+    protected $Id = 338;
+
+    protected $Name = 'ExtraSamples';
+
+    protected $FullName = 'Exif::Main';
+
+    protected $GroupName = 'IFD0';
+
+    protected $g0 = 'EXIF';
+
+    protected $g1 = 'IFD0';
+
+    protected $g2 = 'Image';
+
+    protected $Type = '?';
+
+    protected $Writable = false;
+
+    protected $Description = 'Extra Samples';
+
+    protected $local_g1 = 'ExifIFD';
+
+    protected $Values = array(
+        0 => array(
+            'Id' => 0,
+            'Label' => 'Unspecified',
+        ),
+        1 => array(
+            'Id' => 1,
+            'Label' => 'Associated Alpha',
+        ),
+        2 => array(
+            'Id' => 2,
+            'Label' => 'Unassociated Alpha',
+        ),
+    );
+
+}
+