Update test framework: fix run_tests.py to support all test files, add auto-import-check for test files

node_modules/@protobufjs/fetch/README.md

@@ -0,0 +1,13 @@
+@protobufjs/fetch
+=================
+[![npm](https://img.shields.io/npm/v/@protobufjs/fetch.svg)](https://www.npmjs.com/package/@protobufjs/fetch)
+
+Fetches the contents of a file accross node and browsers.
+
+API
+---
+
+* **fetch(path: `string`, [options: { binary: boolean } ], [callback: `function(error: ?Error, [contents: string])`]): `Promise<string|Uint8Array>|undefined`**
+  Fetches the contents of a file.
+
+**License:** [BSD 3-Clause License](https://opensource.org/licenses/BSD-3-Clause)