Add PHP分词工具，使用第三方php-split

src/Library/PHPSplit.php

@@ -0,0 +1,17 @@
+<?php
+namespace Qii\Library;
+
+\Qii\Autoloader\Psr4::getInstance()
+    ->setUseNamespaces([
+        ['phpSplit', true],
+    ])
+    ->addNamespaces([
+        ['phpSplit', Qii_DIR . DS .'Library'. DS . 'Third'. DS .'php-split'. DS . 'src'. DS],
+    ]);
+
+use phpSplit\Split;
+
+class PHPSplit extends Split\Split
+{
+	
+}

src/Library/Third/php-split

@@ -0,0 +1 @@
+Subproject commit ad7015d2aa7816e0e33082c56828402499db6a99