up: add an new helper class

Author: inhere

src/Helper/ValueBinding.php

@@ -0,0 +1,11 @@
+<?php declare(strict_types=1);
+
+namespace Toolkit\PFlag\Helper;
+
+/**
+ * class ValueBinding
+ */
+class ValueBinding
+{
+
+}

src/Helper/ValueCollector.php

@@ -6,6 +6,7 @@
 
 /**
  * class ValueCollector
+ * - collect value by start i-shell env.
  */
 class ValueCollector
 {