migrate deno_path to deno_std (denoland/deno_std#26)

Previously https://github.com/zhmushan/deno_path

Original: 1a35f9daf5

path/interface.ts

@@ -0,0 +1,47 @@
+/**
+ * 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 interface FormatInputPathObject {
+  /**
+   * 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;
+}