up: update some class

Author: inhere

src/Util/PipelineInterface.php renamed to src/Util/Contract/PipelineInterface.php

@@ -7,7 +7,7 @@
  * @license  MIT
  */
 
-namespace Toolkit\Stdlib\Util;
+namespace Toolkit\Stdlib\Util\Contract;
 
 /**
  * Interface PipelineInterface

src/Util/Pipeline.php

@@ -10,6 +10,7 @@
 namespace Toolkit\Stdlib\Util;
 
 use SplObjectStorage;
+use Toolkit\Stdlib\Util\Contract\PipelineInterface;
 use function is_callable;
 
 /**

src/Std/BaseStream.php renamed to src/Util/Stream/BaseStream.php

@@ -1,6 +1,6 @@
 <?php declare(strict_types=1);
 
-namespace Toolkit\Stdlib\Std;
+namespace Toolkit\Stdlib\Util\Stream;
 
 /**
  * class BaseStream

src/Util/Stream/DataStream.php

@@ -0,0 +1,14 @@
+<?php declare(strict_types=1);
+
+namespace Toolkit\Stdlib\Util\Stream;
+
+/**
+ * class DataStream
+ */
+class DataStream
+{
+    public static function fromArray(): self
+    {
+
+    }
+}