Added a very complicated AsyncIterableReader class.

The class was already implemented in
"https://deno.land/std@0.144.0/streams/conversion.ts".  So, I litterally
lost 1 day of work!  I hate myself.

vendor/deno.land/std@0.188.0/path/_interface.ts

@@ -0,0 +1,30 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+// This module is browser compatible.
+
+/**
+ * A parsed path object generated by path.parse() or consumed by path.format().
+ */
+export interface ParsedPath {
+  /**
+   * The root of the path such as '/' or 'c:\'
+   */
+  root: string;
+  /**
+   * The full directory path such as '/home/user/dir' or 'c:\path\dir'
+   */
+  dir: string;
+  /**
+   * The file name including extension (if any) such as 'index.html'
+   */
+  base: string;
+  /**
+   * The file extension (if any) such as '.html'
+   */
+  ext: string;
+  /**
+   * The file name without extension (if any) such as 'index'
+   */
+  name: string;
+}
+
+export type FormatInputPathObject = Partial<ParsedPath>;