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

node_modules/@protobufjs/path/README.md

@@ -0,0 +1,19 @@
+@protobufjs/path
+================
+[![npm](https://img.shields.io/npm/v/@protobufjs/path.svg)](https://www.npmjs.com/package/@protobufjs/path)
+
+A minimal path module to resolve Unix, Windows and URL paths alike.
+
+API
+---
+
+* **path.isAbsolute(path: `string`): `boolean`**<br />
+  Tests if the specified path is absolute.
+
+* **path.normalize(path: `string`): `string`**<br />
+  Normalizes the specified path.
+
+* **path.resolve(originPath: `string`, includePath: `string`, [alreadyNormalized=false: `boolean`]): `string`**<br />
+  Resolves the specified include path against the specified origin path.
+
+**License:** [BSD 3-Clause License](https://opensource.org/licenses/BSD-3-Clause)